用 8 选 1 数据选择器实现下列函数,数据端 D 7 D 6 D 5 D 4 D 3 D 2 D 1 D 0 分别接( )。
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【单选题】听力原文:The bicycle rider was refused help by several passing motorists on the side of a highway. Which of the following is true according to the speaker?
A.
The bicycle rider didn't stop to help the motorists.
B.
The bicycle rider passed by several motorists.
C.
Some drivers didn't stop to assist the bicycle rider.