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【简答题】
按钮开关通常用作短时接通或断开小电流的( )开关,用于控制电路中发出( )或停止等指令,通过接触器、继电器等控制电器接通或断开主电路。 行程开关又称限位开关,是根据运动部件位置而切换电路的自动控制电器。动作时,由挡块与行程开关的滚轮相碰撞,使触头( )或断开用来控制运动部件的运动方向、行程大小或( )保护。
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【单选题】What is the professor's opinion of The Medium is the Message?
A.
It is a good source of information about cultural history.
B.
Its ideas are becoming less relevant today than in the past.
C.
It was the first book to argue that television was bad for society.
D.
It will influence how the students think about communication.
【单选题】NANDA代表( )
A.
美国护士学会
B.
美国护理诊断协会
C.
北美护理诊断协会
D.
国际红十字会
E.
国际护理诊断协会
【单选题】In my hometown, the old over 100 years old __ not only by their family but also by the government . A. B. good care of C. is taken good care of D. are take good care of
A.
is taken good care
B.
are taken good care
C.
is taken good care of
D.
are taken good care of
【判断题】可以用手将触电的同学拉拽下来
A.
正确
B.
错误
【判断题】When a production possibilities frontier is bowed outward, the opportunity cost of the second good in terms of the first good increases as more of the second good is produced.
A.
正确
B.
错误
【单选题】NANDA代表以下哪个组织( )
A.
美国护士学会
B.
美国护理诊断协会
C.
北美护理诊断协会
D.
国际红十字会
E.
国际护理诊断协会
【单选题】The cross elasticity of demand for good X with respect to the price of good Y is negative. Good X is a normal good and good Y is an inferior good. The supply of good X is perfectly elastic. A rise in ...
A.
will raise
B.
will lower
C.
will have no effect
D.
initially raise and then lower
【判断题】When a production possibilities frontier is bowed outward, the opportunity cost of the first good in terms of the second good increases as more of the second good is produced.
A.
正确
B.
错误
【单选题】NANDA代表( )
A.
美国护理诊断协会
B.
北美护理诊断协会
C.
国际护理诊断协会
D.
中国护理诊断协会
E.
国际护士会
【单选题】The marginal benefit of a good is a measure of
A.
the price of the good.
B.
consumer surplus.
C.
how much a consumer values another unit of the good.
D.
the total utility that the consumer gets from the good.
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