A.Because they are busy serving food to their children.
B.Because they are busy keeping order at the dinner table.
C.Because they have to pay more attention to younger children.
D.Because they are tired out having prepared food for the whole family.
第2题
A.满载货车停车距离长,应提前减速
B.满载货车重量大,应选择路面坚实的地点
C.长时间停车时要在车轮下放置三角木
D.有无事故,均要在货车后面放警告标志
第6题
A.拉紧手制动器
B.将车轮转向安全的方向
C.变速器挂入低速档或倒档
D.用三角木或石块塞住轮
E.驾驶员不准离开车辆
第7题
A.拉紧手制动器
B.将车轮转向安全的方向
C.变速器挂入低速档或倒档
D.用三角木或石块塞住轮
E.驾驶员不准离开车辆
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