下列有关甲苯的实验事实中，能说明侧链对苯环性质有影响的是 [_爱下问搜题

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问题选择题

下列有关甲苯的实验事实中，能说明侧链对苯环性质有影响的是 [ ]

A．甲苯与硝酸发生取代反应生成三硝基甲苯

B．甲苯能使热的酸性KMnO₄溶液褪色

C．甲苯燃烧时产生带浓烈的黑烟的火焰

D．1 mol甲苯最多能与3mol氢气发生加成反应

答案

答案：A

完形填空

     I have a good friend. His name is Tom. He is a nice boy, but he eats too   1   and doesn't like sports.
     He has a big    2   every morning. He has four eggs,   3    of bread and butter and    4 big glass of
milk for it.    5 lunch, he eats two hamburgers, a lot of French fries   6   chicken. He drinks a lot of cola
or soda, too. For dinner, he likes beef and salad.
     He   7    eats beef, chicken, hamburgers, and eggs. He likes ice cream, cola and soda,    8  .
     Too much food is not    9       for health. So Tom is very   10 .

( )1.A. many
( )2.A. breakfast
( )3.A. much
( )4.A. a
( )5.A. For
( )6.A. for
( )7.A. often
( )8.A. and
( )9.A. bad
( )10.A. healthy

B. much
B. lunch
B. many
B. an
B. On
B. and
B. never
B. but
B. good
B. fit

C. some
C. dinner
C. lots
C. some
C. For
C. of
C. seldom
C. too
C. important
C. thin

D. any
D. supper
D. lot
D. any
D. Of
D. but
D. not
D. also
D. hungry
D. fat

配伍题 B型题

古代医患关系特点（）
现代医患关系特点（）
近代医患关系特点（）

A.尊重患者的生命价值，确立双向作用的医患关系

B.医患关系的个体性、稳定性、直接性

C.医患关系的间接性、多元性、易变性

D.医患关系的分解趋势和物化趋势

E.扩大医学服务的范围