[单选题]在直流电机中,增加电枢线圈的数量,可以使电刷两端的直流电动势( ). (A) 增大 (B) 减小 (C) 不变 (D) 不确定
[单选题]某路基边坡属于风化的岩且坡面不平整,应采用的防护措施是 A.喷浆B.抹面C.植被防护D.灌浆
[名词解释]材料的孔隙率
[名词解释]关键线路
[单选题]若在“tE.ployee”表中查找所有姓“王”的记录,可以在查询设计视图的准则行中输入( )A. Like 王B. Like 王*C. =王D. =王*
[填空题]11010011.01101001.10000111.11000011的十进制表示为_____.(本题2.0
[判断题]OVD公司提供了包括 BA MEDLINE等二次文献数据库及多种外文全文期刊数据库
[单选题]在缩聚反应的实施方法中对于单体官能团配比等物质量和单体纯度要求不是很严格的缩 聚是( ). A、熔融缩聚； B、溶液缩聚； C、界面缩聚； D、 固相缩聚.
[单选题]假定一个同步总线的工作频率为33MHz,总线中有32位数据线,每个总线时钟传输一次数据,则该总线的最大数据传输率为( )A. 66MB.sB. 132MB/sC. 528MB/sD. 1056MB/s
[单选题]砌筑砖基础时,宜采用的砂浆是 A.石灰砂浆 B.水泥砂浆 C.混合砂浆 D.粘土砂浆
[判断题]与直流发电机的情况相同,变压器输出电压的变化率只与输出的负载电流有关.
[单选题]一别墅庭院有石砌围墙,下为毛石基础,墙内地坪标高为―0.45m,墙外地坪标高为―1.2m,在计算砌石工程量时,下列说法正确的是( )Ａ.―1.2ｍ以下为毛石基础,―1.2ｍ以上为石墙Ｂ.―0.45ｍ以下为石基础,―0.45ｍ以上为石墙Ｃ.以―0.825ｍ为界,下为石基础,上为石墙Ｄ.―1.2ｍ以下为石基础,―0.45ｍ以上为石墙
[判断题]对软盘进行写保护是防止软盘感染计算机病毒的有效措施
[单选题]根据公司法规定,累积债券总额不得超过公司净资产的( ) A.30%B.40%C.50%D.60%
[判断题]绝缘体两端的电压无论再高,都不可能通过电流.
[多选题]错觉A.是对客观事物的歪曲知觉B.种类很多C.通过主观努力可以克服D.没有规律
[问答题]散文概念有哪四种含义
[判断题]采用分裂导线可以提高静态稳定性 采用分裂导线可以提高静态稳定性.
[名词解释]形态效应
[单选题]哪个途径是从文献的内部特征进行检索的( ). A、 分类途径 B、 号码途径 C、 作者途径 D、 刊名途径
[单选题]More than seven hundred years ago, the Prince of Wales had a very big and brave dog called Gelert. One day the Prince wanted to go hunting with his men. He told his dog to stay at home and look after his baby son. The baby was in a wooden cradle, which was like a small bed.When the Prince came back from hunting, Gelert ran out to meet his master. He wagged his tail and jumped up to put his paws on the Prince’s chest. Then the Prince saw the blood on Gelert’s jaws and head. “What have you done?” the Prince said. He rushed into his house and looked for his baby son. The cradle was lying on its side on the floor. The clothes were torn and there was blood on them. “So you have killed my son?” the Prince said angrily.” You unfaithful dog!” He took out his sword and killed the dog.Just as Gelert was dying, he managed to bark. Then the Prince heard a baby call to the dog. The prince ran out of the house and saw his son lying on the ground unhurt. Near him was a dead wolf. Then the Prince knew that Gelert had defended the baby and killed the wolf. Then Prince ran back into the house but he was too late. Gelert was dead. The Prince was very sad indeed. Tears ran down his face when he realized he had killed his faithful friend. The Prince carried the body of his brave dog to the top of a mountain and buried him there. A.ter this, the Prince never smiled again. E.ery morning at dawn, he walked up the mountain and stood by the dog’s grave for a few minutes. If you go to Mount Snowdon inWales, people will show you where Gelert is buried. There is a sign by his grave. It reminds people of a brave and faithful dog.C.oose the right answer:The Prince was surprised to see blood on Gelert.s _______________.得分/总分 A. jaws and head 2.00/2.00 B. paws C. head D. tail