单项选择题

一般驻车制动的操纵装置应在全行程的()以内产生规定的制动性能。

A、1/2
B、1/3
C、2/3
D、3/4

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A.receiver
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In a collision, the whole procedure of airbag's inflation and deflation takes nearly ( ).

A.0.1second
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C.1
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