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【单选题】
长拳运动中呼吸得法总的要求是( )
A.
气要提
B.
气要托
C.
气要聚
D.
气要沉
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【单选题】钢筋标注中Φ8@100/200中的100/200表示( )。
A.
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B.
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C.
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A.
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A.
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B.
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C.
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A.
to
B.
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C.
with
D.
at
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