皮皮学,免费搜题
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【单选题】
20Cr表示含碳量 。
A.
20%
B.
2%
C.
0.2%
D.
0.02%
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皮皮学刷刷变学霸
举一反三
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A.
1条
B.
2条
C.
3条
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A.
to having
B.
have
C.
to have
D.
having
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A.
1条
B.
2条
C.
3条
【简答题】Do you think the flight attendant did her job properly in dialogue 1? If you were her, what would you do?
【单选题】三角形有几条边? [     ]
A.
2条
B.
3条
C.
4条
【单选题】---- Do you like her friends? ---- Yes. One of her friends often _______ her _____ her English in the class.
A.
help, with
B.
help, to do
C.
helps, doing
D.
helps, with
【单选题】三角形有几条高? [     ]
A.
1条
B.
2条
C.
3条
【单选题】三角形有几条边
A.
1
B.
2
C.
3
D.
4