绘图题:根据图E-21(a)画出线电压和相电压的向量图。

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问题:

绘图题:根据图E-21(a)画出线电压和相电压的向量图。

考点:火电电力职业技能鉴定考试内线安装工内线安装工题库
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行政处罚是行政执法的最基本方式。( )

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阅读理解。
     There are four hats.They are red, yellow, green and white. They are Mike's, Bill's, Tom's and John's.
Tom's hat is not yellow, green or red. John's hat is not green. And Mike's hat is not yellow or green.
What colours are their hats?
1. Mike's hat is ______.
[ ]
A. red
B. yellow
C. white
D. green
2. ______ hat is green.
[ ]
A. Mike's
B. Bill's
C. Tom's
D. John's
3. Is Tom's hat white or green? ______.
[ ]
A. Yes, it is
B. No, it isn't
C. It's white
D. It's green
4. Is the yellow hat John's or Tom's? ______.
[ ]

A. It's John's
B. It's Tom's
C. It's Mike's
D. It's Bill's

5. How many kinds of colours are their hats? ______.
[ ]
A. Two
B. Three
C. Four
D. Five
题型:问答题 简答题

下列程序的运行结果是( )。
Private Function myfun(m, n)
Do While m > n
Do While m>n:m=m-n:Loop
Do while n>m:n=n-m:Loop
Loop
myfun=m
End Function
Private Sub Command1_Click()
Print myfun(9, 8)
End Sub

A) 2

B) 1

C) 4

D) 3

题型:问答题 简答题

转录过程中需要的酶是

A.DNA指导的DNA聚合酶

B.核酸酶

C.RNA指导的RNA聚合酶Ⅱ

D.DNA指导的RNA聚合酶

E.RNA指导的DNA聚合酶

题型:问答题 简答题

为避免整车报废,绞车离合器与刹车不可()使用。

A、长时间

B、相继

C、同时

D、分开

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