带传动的优点不包括下列那一条?()
A.能缓和冲击和震动
B.工作平稳、无噪声
C.可用于中心距较小的地方
D.结构方便、维护方便
参考答案:C
---Jason, you need to refresh yourself with a cup of coffee.
--- Yeah, I went to bed very late last night, ________, early this morning.
A, rather than B. what’s more
C. or rather D. what’s worse
定价目标有哪些()。
A、投资回报率
B、市场稳定
C、抵制新进入者
D、市场渗透