新学车菜鸟一只,向前辈诚心请教以下问题:( s2 p6 u! ?; y; o+ S& Z' _! G1 x
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1、换道(并线)时应该做一次还是两次shoulder check?教材76页上说“Check for traffic shoulder check, signal, and when safe, move in to the proper lane”,但也有人说在打灯之后要再shoulder check一次,才好打轮给油,完成换道。' H' J# d/ v& ]0 k) V
* p1 [ X& M: \& f2、从小区经过人行道上路前,应该停车一次还是两次?教材71页说“Stop before entering a main street...Stop before any sidewalk crossing...”,有人指点说压上人行道前先停一下,观察行人,压过人行道进入大路前再停一次,观察车辆。请问两次停车是必须的,还是根据视野而定?9 i+ e3 r# O: ^* R2 b. |; j