为保障人体健康,必须严格限制用量的是() A.用SO2漂白食品 B.用小苏打制作

题型:选择题

问题:

为保障人体健康,必须严格限制用量的是(    )

A.用SO2漂白食品

B.用小苏打制作糕点

C.用食醋清洗热水瓶胆内壁附着的水垢

D.用O3对游泳池中的水进行消毒

考点:大气污染、改善大气质量水的净化与处理
题型:选择题

Every day, in all kinds of weather, a lot of men and women go jogging (running slowly). Why has jogging become so popular? Most people start jogging___小题1:___they hear it is a very good form of exercise. Jogging makes one’s heart strong and helps people control their weight or stay slim. If you keep jogging regularly, you needn’t take pills__小题2:__ skip meals to lose weight. Jogging can__小题3:__make you feel better about yourself.

Donald Robbins,___小题4:__ is 42 years old and works in an office, began jogging a few years ago because he felt he was overweight. At first he could only run about 300 meters,__小题5:__two years later, he ran a marathon- over 42 kilometers.

Do you jog? If you do, be sure to ask your doctor for advice. Does jogging cost much? Almost__小题6:__. But __小题7:__ is very important to have a good pair of shoes that are made especially for jogging. If not, when you run on hard ground for a long time it may cause your feet__小题8:__ hurt.

题型:选择题

“传统型”人口再生产类型的特征为(  )

A.极高出生率、高死亡率、低自然增长率

B.高出生率、低死亡率、高自然增长率

C.高出生率、高死亡率、较低自然增长率

D.低出生率、低死亡率、低自然增长率

题型:选择题

土质条件对地震反应谱的影响很大,土质越松软,加速度谱曲线表现为()

A.谱曲线峰值右移

B.谱曲线峰值左移

C.谱曲线峰值增大

D.谱曲线峰值降低

题型:选择题

两身功夫是指练就过硬的()技能和外语沟通能力。

A.岗位

B.专业

C.业务

D.管理

题型:选择题

下列哪一个不是扫描仪的常用接口类型?

A.SCSI(小型计算机标准接口)

B.EPP(增强型并行接口)

C.USB(通用串行总线接口)

D.BCSI(大型计算机标准接口)

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