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【单选题】
静力学研究的对象为?A.
构件
B.
工程建筑
C.
刚体
D.
变形体
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反馈参考答案：
举一反三
【多选题】下列关于倒闸作业的叙述正确的是：（）。
A.
隔离开关可以开、合不超过5km（延长公里）线路的空载电流，超过时，应经过试验，报铁路局批准；
B.
隔离开关可以开、合不超过10km（延长公里）线路的空载电流，超过时，应经过试验，报铁路局批准
C.
从事隔离开关倒闸作业人员按要求每年进行考试，其安全等级不得低于三级
D.
在申请倒闸命令时，先由安全等级不低于三级的要令人向供电调度提出申请，供电调度员审查后，发布倒闸命令；
E.
遇有危及人身和设备安全的紧急情况，可以不经供电调度批准，先行断开断路器或有条件断开的负荷开关、隔离开关，并立即报告供电调度。但再闭合时必须有供电调度员的命令
【简答题】Dear Miss Li, I’d like to thank you for sending money to “Animal Helpers”, an organization to help disabled people. As you know, you have helped make possible for me to have “Lucky”, who My life with ...
【简答题】Dear Miss Li, I’d like to thank you for sending money to “Animal Helpers”, an organization to help disabled people. As you know, you have helped make possible for me to have “Lucky”, who my life with ...
【单选题】Salesgirl: Good morning, miss. Can I help you? Mary: Yes, I’d like half a kilo of oranges, please. Salesgirl:________. Anything else? Mary: No, thank you.
A.
These oranges are for you
B.
Give you the oranges
C.
There you are
D.
Here are you
【简答题】Waiter: A cheese burger? Sara: No, a chicken burger, please. Waiter: ____________, madam. And you, Miss? Anna: I’d like the same soup. And I’d like spaghetti with salad.
【简答题】Dear Miss Li, I’d like to thank you for sending money 1 “Animal Helpers”, an organization set up to help disabled people. You see, you have helped 2 it possible for me to have “Lucky”. My life 3 pleas...
【简答题】一个复合命题为假,是否其所有的支命题都为假?为什么?请举例说明。
【简答题】Sara: OK. I’d like bean soup and a burger, please. Waiter: A cheese burger? Sara: No, a chicken burger, please. Waiter: ____________, madam. And you, Miss? Anna: I’d like the same soup. And I’d ...
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