【单选题】在我们学校,文学院和外国语学院的同学普通话水平测试必须达到什么级别?
【单选题】The room is in a terrible mess; it ____ cleane d.
【单选题】For the Chinese, “No” sometimes doesn’t mean no. which is the best explanation of the above statement?
A.
A forced kindness deserves no thanks.
B.
When guests refuse to take, we often stop offering drinks and food.
C.
“No” means people don’t like to be pressed.
D.
“No” is a polite remark. If the host just brings the food or drink and ignores the “no”, people will still accept it.
【简答题】什么是必要约束?什么是多余约束?多余约束从哪个角度来看才是多余的?从以下四个结果中选一个,并说明原因。 A.从对体系的自由度是否有影响的角度看; B.从对体系的计算自由度是否有影响的角度看; C.从对体系的受力和变形状态是否有影响的角度看; D.从区分静定与超静定两类问题的角度看。
【简答题】请在笔记本上绘出“试题1-4用PLC控制双速交流异步电动机自动变速电路的设计、安装与调试”的地址分配表(I/O分配表),并在答案旁边写上学号姓名,然后拍照(照片中必须包含答案和个人姓名)提交于此题。
【简答题】The room is in a terrible mess it _______ cleaned. A. can’t have been B. couldn’t be C. may have been D. would be