下列不属于固定化酶在利用时的特点的是[ ] A.有利于酶与产物的分离 B.可以被

题型:选择题

问题:

下列不属于固定化酶在利用时的特点的是[ ]

A.有利于酶与产物的分离

B.可以被反复利用

C.能自由出入依附的载体

D.一种固定化酶一般不能催化一系列酶促反应

考点:细胞和酶的固定化
题型:选择题

Zhou Yan, a Junior 3 student, wishes he never got a mobile phone. Last week, he went to see a doctor because his arms and fingers(手指) were injured. The doctor told him that he had had “mobile phone disease(疾病)”. A growing number of teenagers are getting “mobile phone disease” because more and more are using mobile phones.

Zhou got his mobile phone five months ago. He sent messages to his friends with it all the time, even when going to bed. Zhou started to do badly in exams because he spent too much time playing with his mobile phone. His mom got very angry with him, but he didn’t stop playing with the mobile phone until his arms got injured.

Yang Ling, a doctor, says that if someone uses his mobile phone too much, like Zhou Yan, he might get “mobile phone disease”. If teenagers find their arms or fingers hurt(疼痛), they should go to see a doctor as soon as possible. Yang says teenagers should try to use their mobile phones less, especially(尤其) at school.

小题1:Zhou Yan wishes he never got a mobile phone because         .

A.it is useless to him

B.it doesn’t work well

C.it made his arms and fingers hurt

D.his mother got angry with him小题2:Zhou Yan didn’t do well in exams because         .

A.he argued with his mother

B.he was ill and didn’t go to school

C.he didn’t study for the exams

D.he spent much time on the mobile phone小题3:If someone has “mobile phone disease”, it means         .

A.the mobile phone brought him a disease

B.something is wrong with his mobile phone

C.he can’t live without the mobile phone

D.he hates the mobile phone very much小题4:Yang Ling thinks teenagers should         .

A.go to see a doctor very often

B.use mobile phones more when they are at school

C.use mobile phones less and less

D.not use mobile phones anymore小题5:The writer wants to tell us         in the article.

A.only a few teenagers have mobile phones

B.using mobile phones too much is bad for teenagers’ study and health

C.mobile phones can help teenagers get out of trouble

D.people shouldn’t use mobile phones

题型:选择题

角焊缝的横向收缩比对接焊缝的横向收缩小。

题型:选择题

芽孢染色时为什么要加热或延长染菌时间?

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下列哪项不是佛手的功能()

A.燥湿

B.化痰

C.疏肝解郁

D.理气和中

E.活血散结

题型:选择题

关于战略性人力资源管理的说法,正确的是( )。

A.战略性人力资源管理的重点是处理员工关系

B.战略性人力资源管理的职责是承担组织中的事务性工作

C.战略性人力资源管理人员的角色是变革的推动者

D.战略性人力资源管理采用灵活的方式对员工进行管理

E.战略性人力资源管理将人员及其知识和能力作为投资开发的关键

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