关于人体癌细胞的叙述，不正确的是（） A.癌变主要是因为人体细胞的原癌基因和抑癌基因

归经指的是（）。

A.药物对于机体某部分的选择性作用

B.药物寒热温凉四性

C.药物对于机体有无毒副作用

D.药物具有的升、降、浮、沉的作用趋向

E.药物的五种滋味

阅读下面两则材料，概括其主要内容。（不超过15个字）  

　　材料一：潘妈妈最近很烦恼，这不，最近孩子遇到不会的作业第一时间就是“百度一下”，不到半秒钟就会出来几十页相关问题的解答。写作文更是素材多多，索性直接从网上“拿来”。   

　　材料二：夜妈妈说，儿子昨天竟然搜到了有理数的题自己在做；老师要他们预习，她在百度文库里找到了。

报表设计中设置多个排序字段时，决定输出顺序首先要考虑的字段是( )。

A．第四排序字段

B．第三排序字段

C．第二排序字段

D．第一排序字段

某施工企业派采购员王某采购一批外墙面砖，王某与某建筑材料公司签订一份外墙面砖供应合同，因洽谈顺利，且该生产公司的卫生洁具质量上乘，价格优惠，遂以公司名义又签订了50套洁具供应合同，则该洁具供应合同属于( )。

A．效力待定合同

B．无效合同

C．可变更合同

D．可撤销合同

A narrowing of your work interests is implied in almost any transition from a study environment to managerial or professional work. In the humanities and social sciences you will at best reuse only a fraction of the material (1) in three or four years’ study. In most career paths academic knowledge only (2) a background to much more applied decision-making. Even with a " training " form of degree, (3) a few of the procedures or methods (4) in your studies are likely to be continuously relevant in your work. Partly this (5) the greater specialization of most work tasks compared (6) studying. Many graduates are not (7) with the variety involved in (8) from degree study in at least four or five subjects a year to very standardized job (9) . Academic work values (10) inventiveness, originality, and the cultivation of self-realization and self-development. Emphasis is placed (11) generating new ideas and knowledge, assembling (12) information to make a " rational " decision, appreciating basic (13) and theories, and getting involved in fundamental controversies and debates. The humanistic values of higher (14) encourages the feeling of being (15) in a process with a self-developmental rhythm. (16) , even if your employers pursue enlightened personnel development (17) and invest heavily in " human capital " —for example, by rotating graduate trainees to (18) their work experiences—you are still likely to notice and feel (19) about some major restrictions of your (20) and activities compared with a study environment.

（2）（）

A.admits

B.equips

C.states

D.forms