[判断题]目由电子为多数载流子,空穴为少数载流子的杂质半导体称为PM半导体.( )
[名词解释]伸缩缝:
[单选题]利用计算机对指纹进行识别、对图像和声音进行处理属于的应用领域是____. A.科学计算 B.自动控制 C.辅助设计 D.信息处理
[判断题]企业获得一个新客户的投入是留住一个老客户的n倍.( )
[判断题]当垫块的高度tb2180mm,且垫块自梁边缘起挑出的长度不大于垫块的高度时,称为刚性垫块.( )
[单选题]《枫桥夜泊》的作者是( ) A.王维 B.李白 C.杜甫 D.张继
[单选题]墨汁负染色主要用于检测A.白色念珠菌B.新型隐球菌C.热带念珠菌D.烟曲霉菌E.镰刀菌
[单选题]The police insist that Michael did not follow the correct ______ in applying for a visa. A、 process B、 progress C、 program D、 procedure
[单选题]近现代保险制度的发祥地为( )A.英国B.意大利北部地中海沿岸C.西班牙的巴塞罗那D.法国
[单选题]关于母乳喂养的方法,不正确的是A.母亲取坐位哺乳B.吸空一侧乳房再吸另一侧C.哺乳时只将母亲乳头送入婴儿口中即可D.先给小儿换尿布,然后清洗母亲双手和乳头E.哺乳完毕后将小儿竖抱起并轻拍背让吸入空气排出
[单选题]下列说法正确的是 ( )A、精密度高,准确度也一定高;B、准确度高,系统误差一定小;C、增加测定次数,不一定能提高精密度;D、偶然误差大,精密度不一定差
[问答题]民法的调整对象是( )
[阅读理解]When someone gives you a present, it is very (1)______ to neglect to thank him for it. If it is given to you personally, you may thank him right away, though a note of thanks or a(n) (2)______ reference to the gift in a later letter always gives pleasure. If the gift is sent to you, you should write a letter of (3)______ at once. Try to thank of the things you like about the gift and mention (4)______ in the letter.Polite (5)______ in China demand that a person stand up when anyone enters a room or when anyone hands him something. In the West people do not stand up nearly so frequently. When you are (6)______ a cup of tea or something to eat, for example, it is not correct to rise or even to make a slight rising movement. Remain seated and receive it with a slight (7)______ of the head and a smile and say, Thank you.If you are a man you must rise (8)______ feet when a lady comes up but not otherwise. A lady rises only when she is (9)______ to the host or to the guest of honor, or to a considerably older woman, not otherwise.In China we use two hands when giving something to a person, or when receiving it, if we want to be very (10)______.1.A. polite B. thoughtful C. impolite D. attentive2.A. slight B. uneasy C. excessive D. appreciative3.A. thanks B. reply C. answers D. attitude4.A. them B. thank C. it D. kindness5.A. tastes B. manners C. circumstances D. habits6.A. introduced B. offered C. asked D. suggested7.A. inclination B. affection C. intention D. attention8.A. to B. from C. up D. at9. A. called B. introduced C. suggested D. asked10.A. careful B. polite C. graceful D. civilized
[多选题]下列选择中,属于员工福利特点的选项有( )A.集体性 B.均等性C.补充性 D.有限性 E.差别性
[问答题]采用喷调节的汽轮机,在各调节汽依次开启的过程中,对通过喷嘴的蒸汽的焓降叙述正确的是:( )
[单选题]某年级期中考试数学平均分为80分,标准分为10;语文平均分为75人,标准分为10.该年纪学生张三的数学与语文成绩均为85分,则张三成绩较好的科目是( )A. 语文B. 数学C. 一样好D. 无法比较
[单选题]关于酶的性质哪一种说法不对( ) A.高效催化性 B.专一性 C.反应条件温和 D.可使反应平衡向有利于产物方向移动
[填空题]多层砌体承重房屋的层高,不应超过( )
[单选题]下列有关存储器读写速度的排列,正确的是( ). A. RAM>C.che>硬盘>软盘 B.Cache>RAM>硬盘>软盘 C. Cache>硬盘>RAM>软盘 D. RAM>硬盘>软盘>Cache
[单选题]下列物质中含有腺嘌呤和鸟嘌呤组分的是A.蛋白质B.氨基酸C.核酸D.糖
[判断题]Dcs控制系统就是指分散控制系统.