药事是指( ) A．药事组织依法对药事活动实行必要管理 B．国家及政府部门依法对药

.She worries ________, so she often feels much ________.

A．much too, stressed

B．too much, more stressed

C．too many, less stressed

D．a lot, less stressed

单句改错。

     每句中有一处错误。错误涉及一个单词的增加、删除或修改。

     增加：在缺词处加一个漏字符号（^）。并在其下面写出该加的词。

     删除：把多余的词用斜线（＼）划掉。

     修改：在错的词下划一横线，并在该词下面写出修改

后的词。

     注意：每处错误及其修改均仅限一词

1. The boy lying on the ground lied that he had lain the dictionary on the table.

2. The terrifying news made me realize how terrible problems we would face.

3. It is time that we should do something to prevent more trees from cut down.

4. I felt bad indeed when I heard someone say “Mind your manner”.

5. The reason why the lake smells terrible is that large amounts of water has been polluted.

按照内在性质划分，平面设计可分为（）。

A.纯粹艺术设计和商业设计

B.纯粹艺术设计和个人设计

C.个人设计和商业设计

D.产品设计和商业设计

现金保险的保险对象是什么（属于被保险人所有，或替他人保管或与他人共有的）（）

A.现金

B.政府债券

C.支票

D.现金银行汇票

E.邮政汇票

设函数f(x)满足f(0)=0，f"(x)＜0在(0，+∞)成立．求证：对任何x₁＞x₂>0有
x₁f(x₂)＞x₂f(x₁)．