电液转辙机各接点压力调整至().
A.3N~4N
B.5N~10N
C.11N~12N
D.13N~14N
参考答案:B
--- Hi ,guy! How many plans have you made for the coming summer holiday ?
--- at all. Perhaps I’m going to ______ it with my friends .
A.Nothing; cost
B.None; spend
C.None; take
D.Nothing; pay
喷涂三原则为喷枪运行速度、()、图样搭接宽度;