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【简答题】
A.Classes designed for working people on weekends. B.Classes designed for working people on holidays. C.Classes that can be taken by radio. D.Classes that can be taken by television.
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参考答案:
举一反三
【判断题】改变旋转磁场的转向即可改变电动机的转向,即:任意交换接入定子绕组三相电源中的两相,电动机就会反转。
A.
正确
B.
错误
【单选题】I insisted he______ back the wallet to the lady, but he insisted he______it.
A.
handed; didn’t steal
B.
hand; hadn’t stolen
C.
hand; not steal
D.
handed; hadn’t stolen
【判断题】三相电动机的正反转控制中,改变电动机三相交流电源中任意两相的相序,即可改变电动机的旋转方向。
A.
正确
B.
错误
【单选题】His father insisted on punishing him, but he insisted he had _______ to do with the matter.
A.
something
B.
a lot
C.
nothing
D.
anything
【单选题】If he ___ that he ____ to work there, everything would be OK now.
A.
insisted, be sent
B.
insisted, was sent
C.
had insisted, be sent
D.
had insisted, was sent
【单选题】His father insisted _____ him, but he insisted he _____ nothing to do with the matter. [     ]
A.
on punishing; should have
B.
he punished; had
C.
on punishing; had
D.
he punish; should have
【单选题】He insisted that his bike ______ stolen and his wife insisted he ______ have to telephone the police. [     ]
A.
has been; would
B.
had; would
C.
was; should
D.
had been; should
【简答题】区分下列每组词的含义有何不同 ( 1 )脂和酯 ( 2 )脂类和类脂 ( 3 )磷酸酯和磷脂酸 ( 4 )混合甘油酯和甘油酯混合物
【简答题】电动机反转的方法 只需改变电动机旋转磁场的旋转方向,即改变输入电动机三相电源的 ( ),也就数 改变电动机任意两根引线的连接相序。
【判断题】在雾视时,应该让被检者平视看远,以减少调节因素造成的误差。
A.
正确
B.
错误
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