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【单选题】
下列说法中正确的是（　　）
A.
1 3 π x 2 的系数是 1 3
B.
x y 2 2 的系数是2
C.
-5x 2 的系数是5
D.
3x 2 的系数是3
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参考答案：
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【简答题】A．Because the professor has told her to do so. B．Because it's difficult to understand without notes. C．Because there will be a test the next week. D．Because she has borrowed the man's psychology notes...
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【单选题】His writing is so confusing that it's difficult to make out it is that he is trying to express. [     ]
A.
that
B.
how
C.
who
D.
what
查看完整题目与答案
【单选题】It's difficult to _everyone.
A.
please
B.
pleasant
C.
pleasure
D.
pleased
查看完整题目与答案
【单选题】It's difficult to see the road when it's .
A.
humid
B.
sunny
C.
foggy
D.
warm
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【单选题】严寒地区受动荷载作用的焊接结构，应选用碳素结构钢的品种是（）。
A.
Q235—AF
B.
Q235—B
C.
Q235—A·b
D.
Q235—D
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【单选题】严寒地区受动荷载作用的焊接结构，应选用碳素结构钢的品种是( )。
A.
Q235—AF
B.
Q235—B
C.
Q235—A·b
D.
0235—D
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【判断题】It's not necessary to set up a complicated password because it's difficult to remember.
A.
正确
B.
错误
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【单选题】严寒地区受动荷载作用的焊接结构，应选用碳素结构钢的品种是（ ） A．Q235－AF B．Q235－B C
A.
严寒地区受动荷载作用的焊接结构，应选用碳素结构钢的品种是( ) A.Q235-AF
B.
Q235-B
C.
Q235-A·b
D.
Q235-D
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【单选题】Which of the following statements is NOT true of robots?
A.
It's difficult to prevent robots from contacting people.
B.
The behavior. of robots will be more unforeseeable.
C.
Robots in the future will be more intelligent than those today.
D.
Programming robots through a cramped room is the most difficult task
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【单选题】严寒地区受动荷载作用的焊接结构钢,应选用( )牌号的钢。
A.
Q235-F
B.
Q235-A
C.
Q235-B
D.
Q235-D
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相关题目：
【简答题】A．Because the professor has told her to do so. B．Because it's difficult to understand without notes. C．Because there will be a test the next week. D．Because she has borrowed the man's psychology notes...
查看完整题目与答案
【单选题】His writing is so confusing that it's difficult to make out it is that he is trying to express. [     ]
A.
that
B.
how
C.
who
D.
what
查看完整题目与答案
【单选题】It's difficult to _everyone.
A.
please
B.
pleasant
C.
pleasure
D.
pleased
查看完整题目与答案
【单选题】It's difficult to see the road when it's .
A.
humid
B.
sunny
C.
foggy
D.
warm
查看完整题目与答案
【单选题】严寒地区受动荷载作用的焊接结构，应选用碳素结构钢的品种是（）。
A.
Q235—AF
B.
Q235—B
C.
Q235—A·b
D.
Q235—D
查看完整题目与答案
【单选题】严寒地区受动荷载作用的焊接结构，应选用碳素结构钢的品种是( )。
A.
Q235—AF
B.
Q235—B
C.
Q235—A·b
D.
0235—D
查看完整题目与答案
【判断题】It's not necessary to set up a complicated password because it's difficult to remember.
A.
正确
B.
错误
查看完整题目与答案
【单选题】严寒地区受动荷载作用的焊接结构，应选用碳素结构钢的品种是（ ） A．Q235－AF B．Q235－B C
A.
严寒地区受动荷载作用的焊接结构，应选用碳素结构钢的品种是( ) A.Q235-AF
B.
Q235-B
C.
Q235-A·b
D.
Q235-D
查看完整题目与答案
【单选题】Which of the following statements is NOT true of robots?
A.
It's difficult to prevent robots from contacting people.
B.
The behavior. of robots will be more unforeseeable.
C.
Robots in the future will be more intelligent than those today.
D.
Programming robots through a cramped room is the most difficult task
查看完整题目与答案
【单选题】严寒地区受动荷载作用的焊接结构钢,应选用( )牌号的钢。
A.
Q235-F
B.
Q235-A
C.
Q235-B
D.
Q235-D
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