[多选题]唐诗的盛况主要表现在A.作家作品多 B.题材内容广泛C.形式体裁完备 D.风格流派众多
[单选题]导致需求曲线发生位移的原因是( )A. 因价格变动,引起了需求量的变动B. 因供给曲线发生了位移,引起了需求量的变动C. 因影响需求量的非价格因素发生变动,而引起需求关系发生了变动D. 因社会经济因素发生变动引起产品价格的变动
[单选题]数字信号和模拟信号的不同之处是( ). A、 数字信号在大小上不连续,时间上连续,而模拟信号则相反 B、 数字信号在大小上连续,时间上不连续,而模拟信号则相反 C、 数字信号在大小和时间上均不连续,而模拟信号则相反 D、 数字信号在大小和时间上均连续,而模拟信号则相反
[单选题]语句format(123.4567,”0000.00”)的结果为:A. “0123.45”B. “0123.46”C. ”123.45”D. ”123.46”
[判断题]降低酌量性固定成本,可以从提高产品产量着手；降低约束性固定成本,可以从减少其绝对额着手.
[单选题]稳态流动过程的理想功仅取决于体系的初态与终态及环境温度T0,而与具体的变化途径无关. A.正确B.错误C.不一定D.皆有可能
[单选题]我国传统家具发展的高峰时期是在下列哪个时期( ).A.三国时期B.明清时期C.宋元时期D.隋唐时期
[单选题]屋面分格缝处常用的密封材料为 A.水泥砂浆 B.油膏 C.细石混凝土 D.防水砂浆
[问答题]硅胶薄层色谱法分离生物碱,为防拖尾可选用( )
[填空题]配制砌筑砂浆,宜选用( ),不宜用粗砂
[判断题]汉语拼音汉字输入技术属于音码输入技术.
[问答题]In the United States, it is not customary to telephone someone very early in the morn-.ing. If you telephone him early in the day, while he is shaving or having breakfast, the time of the call shows that the matter is very important and requires immediate attention. The same meaning is attached to telephone calls made after 11:00 p. m. If someone receives a call during sleeping hours, he assumes it.s a matter of life or death. The time chosen for the call communicates its importance. In social life, time plays a very important part. In the U.S.A. guests tend to feel they are not highly regarded if the invitation to a dinner party is extended only three or four days before the party date. But it is not true in all countries. In other areas of the world, it may be considered foolish to make an appointment too far in advance because plans which are made for a date more than a week away tend to be forgotten. The meaning of time differs in different parts of the world. Thus, misunderstandings arise between people from different cultures that treat time differently. Promptness is valued high->ly in American life, for example. If people are not prompt, they may be regarded as impolite or not fully responsible. In the U.S. no one would think of keeping a business associate waiting for an hour, it would be too impolite. A person who is 5 minutes late, will say a few words of explanation, though perhaps he will not complete the sentence.
[单选题]电压放大电路首先需要考虑的技术指标是( ).A 放大电路的电压增益 B 不失真问题 C 管子的工作效率
[填空题]__________指在特意安排的真实情景中,让学生身临其境去体验,并写出自己观察、体验的结果.
[填空题]一台容量为500kVA的变压器,当负载的功率因数时,则其有功功率为kW.( )
[填空题]蛋白质可用下列哪种反应检识( )
[单选题]对于载荷不大,多支点的支承,宜选用A. 深沟球轴承B. 调心球轴承C. 角接触球轴承
[判断题]检索时,如果出现“ A see related B字样,只能用“B词检索
[单选题]三绕组升压变压器在中间的绕组为( ). (A) 高压绕组 (B) 中压绕组 (C) 低压绕组 (D) 超高压绕组
[单选题]Jack noticed that the noisy little Indian boy’s chin was _____.
[名词解释]朗读