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【单选题】
有关“表面粗糙度”,下列说法不正确的是( )、A.
是指加工表面上所具有的较小间距和峰谷所组成的微观几何形状特性
B.
表面粗糙度不会影响到机器的工作可靠性和使用寿命
C.
表面粗糙度实际上是一种微观的几何形状误差
D.
一般是在零件加工过程中、由于机床一刀具一工件系统的振动等原因引起的
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【多选题】在采用品种法计算产品成本的企业或车间里，（ ）。
A.
如果只生产一种产品，所发生的全部生产费用都是直接费用
B.
如果只生产一种产品，不存在在各成本计算对象之间分配费用的问题
C.
如果生产多种产品，直接费用可以直接计入各产品成本明细账的有关成本项目
D.
如果生产多种产品，间接费用则要采用适当的分配方法，在各成本计算对象之间进行分配
【简答题】Which of the following is NOT an advantage of computer newspapers? [ A] They are cheaper than traditional newspapers. [ B ] They are very convenient to use. [ C] You can get more information from them...
【简答题】Some young Cambodians are learning a new sport — skateboarding. Fif-year-old Chea Sophanit 1 (skate) for about six months. “When I see the different skaters, I just want to be like 2 .” he says. S...
【单选题】听力原文：You're asking too much for this coat. (4)
A.
It costs 10 dollars.
B.
We have some cheaper ones.
C.
I want to buy it.
D.
We'd better look over it.
【单选题】This blue bike is too expensive. Could you show me a ______ one?
A.
cheap
B.
cheaper
C.
cheapest
D.
cheapper
【单选题】The computers in the other shop will be ______ , but ______.
A.
cheaper, not as better
B.
cheaper, not as good
C.
cheaper, not as well
D.
more cheap, not as better
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