钙基润滑脂主要用于汽车、拖拉机等机械设备上,使用温度范围为()。
A.-10~60℃
B.-10~100℃
C.-10~140℃
D.-10~160℃
参考答案:A
Thomas is the very person I think is worth making friends with.
A.whom
B.who
C.which
D.whoever
10KV及以下线路接户线的档中不宜大于()m.
A.25
B.40
C.50