我国企业内部控制规范体系中针对注册会计师的规范是（）。 A.内部控制基本规范 B.内

学习了唐朝到清朝的历史，老师让同学们在课堂上进行自由讨论。下面是同学们讨论的内容，其中阐述错误的是

A．隋唐时期是繁荣而开放的

B．宋代中国的科技水平居世界前列

C．明朝的航海壮举比欧洲早1000年

D．清朝中央政府中没有宰相这个官职

介导NK细胞发挥ADCC的分子是（）

A.CD16

B.CD23

C.CD32

D.CD64

E.CD89

如图所示，不计绳重和摩擦，拉力F是125N，在10s内将重物匀速提升2m，此时滑轮组的机械效率是80%，则下列说法正确的是

A.动滑轮重是50N　　

B.物体重是375N

C.拉力F的功率是25W　　

D.拉力F做的功是750J

Directions:

Suppose you are a college student on a school campus or an employee in a company. Recently you noticed that some people never paid attention to the signs on a garbage can that say it is desirable to deal with wastes separately. Now you are going to make a conservation campaign speech at a party. And your speech should include:

1) the present situation,

2) and your suggestions.

Write your letter in no less than 100 words. Write it neatly on ANSWER SHEET 2.

Do not sign your own name at the end of the letter, use "Li Ming" instead.

Do not write the address.

卷烟生产、打扫码环节实地监管检查方法重点监管检查如下环节（）。

A、卷烟入库打码情况

B、卷烟出库扫码情况

C、车间机台台账登记情况

D、盘存成品卷烟仓储情况