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(2003•新疆)已知:如图,小明在打网球时,要使球恰好能打过网,而且落在离网5...
(2003•新疆)已知:如图,小明在打网球时,要使球恰好能打过网,而且落在离网5米的位置上,则球拍击球的高度h应为( )
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A.2.7m
B.1.8m
C.0.9m
D.6m
考点分析:
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