驾驶机动车通过窄路、窄桥时的最高速度不能超过每小时30公里。
参考答案:对
—Did you catch the early bus this morning?
—No. It had left the stop________I arrived there.[ ]
A. as soon as
B. as the time
C. by the time
D. during the time
锡焊焊铝制件困难,关键是铝材表面极易生成氧化膜且()。
A.速度很慢
B.速度较慢
C.速度较快
D.速度极快