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【简答题】
Once there lived a rich man 小题1: wanted to do something for the people of his town. But first he wanted to find out whether they deserved his help. In the centre of the main road into the town, he placed 小题2: very large stone. Then he 小题3: (hide) behind a tree and waited. Soon an old man came along with his cow. “Who put this stone in the centre of the road?” said the old man, but he did not try to remove the stone. Instead, with some difficulty he passed around the stone and continued on his way. 小题4: man came along and did the same thing; then another came, and another. All of them complained about the stone but not tried to remove 小题5: . Late in the afternoon a young man came along. He saw the stone, 小题6: (say) to himself, “The night 小题7: (be) very dark. Some neighbors will come along later in the dark and will fall against the stone.” Then he began to move the stone. He pushed and pulled with all his 小题8:   (strong) to move it. How 小题9: (greatly) his surprise was at last! 小题10: the stone, he found a bag of money.
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【判断题】在电网容量不够大时,鼠笼式电动机常采用降压起动。降压起动时,电动机起动性能与全压起动相同。()
A.
正确
B.
错误
【单选题】同步电动机的起动方法多采用( )起动方法。
A.
降压
B.
同步
C.
异步
D.
Y—△
【判断题】自耦变压器降压起动是指电动机起动时,利用自耦变压器来降低加在电动机定子绕组上的起动电压。 ( )
A.
正确
B.
错误
【单选题】What type of course is the following? A short course, given by a facilitator, usually involving workshops, intended to keep professionals up to date.
A.
Refresher course
B.
Conference
C.
Distance course
D.
Full-time graduate course
【单选题】设D:全总个体域,L(x):x是演员,J(x):x是老师,A(x,y):x钦佩y,则命题“所有演员都钦佩某些老师”的逻辑符号化为( )。
A.
x(L(x)→A(x,y))
B.
x(L(x)→ y(J(y)∧A(x,y)))
C.
x y(L(x)∧J(y)∧A(x,y))
D.
x y(L(x)∧J(y)→A(x,y))
【简答题】文件共享权限分 为 ()()()三种。
【单选题】甲板边板心须连续且其厚度也是上甲板中最厚的一列板的主要原因是:I、甲板边板在上甲板中受力最大;II、承受船体横向变形力的作用;III、容易被甲板积水腐蚀
A.
I、II
B.
I、II、III
C.
I、III
D.
II、III
【多选题】阿佛洛狄忒是下列哪位神祗的女儿 ( ) prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
A.
狄俄涅
B.
克洛诺斯
C.
赫拉
D.
阿瑞斯
E.
宙斯
【判断题】在Excel2010中,使用Ctrl+N也可以新建工作簿。
A.
正确
B.
错误
【单选题】鼠笼式异步电动机的起动方法不可采用的是______。
A.
定子电路串电阻起动
B.
Y—△降压起动
C.
转子电路串电阻起动
D.
自耦变压器降压起动
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