升高温度可以增加反应速率，主要是因为（）。 A.增加了反应物压力 B.增加了活化分子

Dear Chairman,

I’m a student from Class1, Grade3. I want to join their club. At school, I study very hardly, and I’m always ready to help others. I got on well with my classmates but I like to help them with their lessons. I often help the old to crossing the road. On the bus, I often offer any possible help to any others. On weekends, I usually go to the park pick up rubbish. I want to join the club very much. For one reason,, I like to make friend and work with others. For other, I will have more chances to help others. I would be glad if accepting..

下列不属于中国工程咨询协会组织机构的是( )。

A．会员代表大会
B．理事会
C．常务理事会
D．常设办事机构及分支机构

静注过快易引起心律失常，血压骤降甚至惊厥的平喘药是：

A．氨茶碱

B．沙丁胺醇

C．异丙托溴铵

D．酮替酚

E．氢化可的松

检查压力蒸汽灭菌效果的指示菌为

A．ATCC 7953

B．ATCC 9372

C．ATCC 25923

D．ATCC 25922

E．ATCC 27853

闽剧