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【单选题】
一般情况下,梁板式楼板中主梁的跨度的()
A.
1/6~1/8
B.
1/8~1/12
C.
1/12~1/18
D.
1/2~1/3
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举一反三
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A.
增加骨密度
B.
改善营养性贫血
C.
缓解体力疲劳
D.
辅助改善记忆
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A.
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B.
till
C.
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D.
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A.
a‘a⊥OX轴
B.
a’a‘’⊥OZ轴
C.
D.
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A.
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C.
has made
D.
had made
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6mA
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8mA
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10mA
D.
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A.
a ¢ a ⊥ OX 轴
B.
a ¢ a ² ⊥ OZ 轴
C.
aa x= a ² a z
D.
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A.
6mA
B.
8mA
C.
12mA
D.
20mA
【单选题】---Do you mind my smoking here? ---_________, Look at the sign. It says, “No Smoking.”
A.
It doesn’t matter.
B.
No, I don’t.
C.
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D.
Never mind.
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