[单选题]Ⅱ类设备的定义是( ).A.设备的防触电保护不仅靠基本绝缘,还包括一种附加的安全措施,即将能触及的可导电部分与设施固定布线中的保护(接地)线相连接B.设备的防触电保护不仅靠基本绝缘,还具备像双重绝缘或加强绝缘这样的附加安全措施.这种设备不采用保护接地的措施,也不依赖于安装条件C.设备可以具有保持保护接地回路连续性的器件,但其必须在设备内部,并按Ⅱ类的要求与能触及的可导电表面绝缘起来D.当设备有能触及的可导电部分时,仅靠基本绝缘作为防触电保护的设备
[多选题]关于社会问题描述正确的是( ). A.社会问题具有客观性的特点 B.社会问题具有主观性特点 C.当代世界各国面临的主要社会问题有社会不平等与贫困问题 D.社会问题具有多元性特点 E.解决社会问题是政府的基本职责之一
[阅读理解]As John moved his bicycle out of the driveway, he heard his mom shout, “Don’t forget to lock it!” He thought to himself that she was such a 36? . Really, what could 37 at that little library in the small prairie(大草原)townThe day, 38 most that summer, was bright and hot. As he 39? , sweat trickled(滴下) down. When he arrived at the library, he leaned his bike 40 the railing(栏杆) and, 41 his mother’s advice, didn’t bother to 42 it. The library was extremely 43? , filled with the distinct smell of books. 44 in the stacks(堆), John spent longer than he’d imagined 45 just the right book. He waited patiently for his 46? , and watched 47 the librarian fed his card through the recorded machine. As he went out of the library, he saw his bike 48 down the sidewalk. Walking beside it was a boy, perhaps fifteen years old. “Hey! That’s my bike! What do you think you’re doing? Give it 49? .” “Give it back! You’re 50? . It’s not yours.” John felt 51 with this boy and his words that the bike was his own. What could he do? He wasn’t at all sure 52 to deal with him. At that moment, John surprised himself. 53 a step toward the boy, he took 54 of his bike. “This bike is mine. You’ll have to give it back to me.” 55 by his determination, the boy let him go. John jumped on and rode home as quickly as he dared. He felt a little strange, however, and a bit older somehow, but he couldn’t quite put his finger on why.A. housewife B. mother C. worrier D. talkerA. happen B. steal C. lose D. takeA. as B. with C. of D. likeA. went? B. rode C. ran D. droveA. to B. on C. at D. againstA. remembering B. thinking C. reminding D. ignoringA. lock B. place C. mind D. careA. hot B. warm C. cool? D. coldA. Missed B. Run C. Seated D. LostA. to choose B. choosing C. to search D. searchingA. turn B. chance C. book D. BikeA. as B. because C. since D. whileA. move? B. moving C. moved D. being movedA. in B. out C. up D. backA. laughing B. smiling C. cheating D. jokingA. angry? B. glad C. sorry D. contentA. what? B. how C. when D. whetherA. Walking B. Making C. Going D. TakingA. hand B. lift C. hold D. fingerA. scared B. surprised C. worried D. disappointed
[单选题]导致欧洲西部畜牧业发达的主要原因是( )A.终年温和湿润的气候 B.平原为主的地形 C.发达的内河航运 D.欧洲人的生活习性
[单选题]下列关于该租房事宜的表述中,正确的有( ). A.该租房协议无效 B.陈某收取的房租应归张某所有 C.如陈某所在公司事后认可该租房协议,则该租房协议有效 D.张某房间的私人物品出现丢失,张某可以要求陈某承担责任
[单选题]属于人体第一道防线的是A.皮肤B.脾脏C.淋巴结D.肝脏
[单选题]The word which in paragraph 7 refers to A.world B.practices C.pressure D.soil
[单选题]环境学家鉴于保护濒临灭绝的动物的高昂费用,提出应通过评估各种濒临灭绝的动物对人类的价值,来决定保护哪些动物.此法实际不可行,因为,预言一种动物未来的价值是不可能的.评价对人类现在作出间接但很重要的贡献的动物的价值也是不可能的.作者的主要论点是什么A.保护没有价值的濒临灭绝的动物比保护有潜在价值的动物更重要. B.尽管保护所有濒临灭绝的动物是必须的,但在经济上却是不可行的. C.由于判断动物对人类价值高低的方法并不完善,所以在此基础上做出决定也不可靠. D.保护对人类有直接价值的动物远比保护有间接价值的动物重要.
[单选题]Can you imagine! He offered me $ 5,000 to break my contract. That's_____. Of course I didn't agree. I would take legal action. A.fraud B.blackmail C.bribery D.compensation
[单选题]Those __ as committee members will attend the meeting. A.being elected B.electing C.elected D.be elected
[单选题]去年,我省部分地区发生了比较严重的手足口病疫情,病人大多为5岁以下的儿童.以下事实中,与该病疫情的大范围传播无关的是 ( )A.病原体为多种肠道病毒 B.可通过食物、飞沫和接触等传播 C.儿童对该病的抵抗力较弱 D.大多数患者通过治疗即可恢复健康
[多选题]根据《药品经营许可证管理办法》,监督检查的内容包括 A.药品专利实施情况 B.GSP的实施情况 C.仓库的情况 D.经营方式 E.企业内部劳动保障情况
[单选题]Another cultural aspect of nonverbal communication is one that you might not think about: space. Every person perceives himself to have a sort of invisible shield surrounding his physical body. When someone comes too close, he feels uncomfortable. When he bumps onto someone, he feels obligated to apologize. But the size of a person's comfort zone depends on his cultural ethnic origin. For example, in casual conversation, many Americans stand about four feet apart. In other words, they like to keep each other at arm's length, people in Latin or Arab cultures, in contrast, stand very close to each other, and touch each other often. If someone from one of those cultures stands too close to an American while in conversation, the American may feel uncomfortable and back away. When Americans are talking, they expect others to respond to what they are saying. To Americans, polite conversationalists empathize by displaying expressions of excitement or disgust, shock or sadness. People with a poker face, whose emotions are hidden by a deadpan expression, are looked upon with suspicion. Americans also indicate their attentiveness in a conversation by raising their eyebrows, nodding, smiling politely and maintaining good eye contact. Whereas some cultures view direct eye contact as impolite or threatening, Americans see it as a sign of genuineness and honesty. If a person doesn't look you in the eye, American might say, you should question his motives—or assume that he doesn't like you. Yet with all the concern for eye contact, Americans still consider staring—especially at strangers—to be rude. What the author discussed in the previous section is most probably about ______. A.classification of nonverbal communication B.the reasons why people should think about space C.the relationship between communication and space D.some other cultural aspects of nonverbal communication
[问答题]阅读分析下列资料并回答问题. [材料一]?目前,土地退化是我国面临的生态环境问题之一.其中土地荒漠化面积已达到267.4万平方千米,约占国土面积的27.4%.防治土地退化已成为我国生态环境 建设的重要任务. (1)将下列代号填入图中对应的空白框中(每个代号限填一次). 土地退化过程不合理的人类活动干早地?润地区紧携气候变化地表疏松的干旱与大风易受侵蚀的沙质沉积物季节同步地而组织土地化 A.风力作用为主B.流水作用为主C.年降水量大且多暴雨D.年降水量少且不稳定(2)导致土地退化的不合理的人类活动主要有哪些(至少写出4项)(3)简述我国西北地区荒漠化防治的具体措施.
[单选题]James: Dear Jessica, why don't you come on holiday with us? Jessica: ______. A.That's very kind of you. I'd love to. B.How dare you invite me? I won't go. C.Yeah, thanks anyway. D.None of your business, OK
[单选题]D注册会计师从总体规模为1000个、账面价值为300000元的存货项目中选取200个项目(账面价值50000元)进行检查,确定其审定金额为50500元.如果采用比率估计抽样,D注册会计师推断的存货总体错报为( ). A.500元 B.2500元 C.3000元 D.47500元
[单选题]该家庭的利率敏感度部位为( )万元. A.18 B.12 C.-12 D.-18
[多选题]下列说法正确的有( ) A. 对于外籍旅游者中的“中国通”,导游人员在讲解时要注意语言的品位 B. 对于年老体弱的旅游者,导游人员在讲解时要力求简洁从容 C. 当旅游者处于烦恼、疲惫、悲伤等消极情绪状态时,导游人员讲解的内容以“深”而“精”为宜 D. 在旅游行程的最初几天,导游人员讲解的工作量最大 E. 在旅游行程接近尾声时,导游人员应讲些轻松有趣的内容
[判断题]新民主主义经济是一种“新资本主义”.
[单选题]不属于硝酸甘油作用机制的是 A.降低室壁肌张力 B.降低心肌氧耗量 C.抗张心外膜血管 D.降低左心室舒张末压 E.降低交感神经活性
[单选题]听力原文:M: Hi. I have some good news for you. W: What is itM: The teacher suggested that we go on a trip this Saturday. W: Oh, wonderful. Where shall we goM: How about going to the parkW: I don't think it's a good place to go to. We can go there another time. We should go farther away this time. M: Where do you think we should go thenW: How about the reservoir in the suburbsM: I don't think it's a good idea. It's not safe. Why not go to the mountain insteadW: That sounds good. Let's go to the mountains to the south of the city.What's the probable relationship between the two speakers?(15) A.A teacher and a student. B.Classmates. C.Father and daughter. D.Mother and son.