题目内容

B型题 灭活病毒无效的因素是().

A. 干扰素
B. 乙醚
C. 青霉素
D. -70℃
E. 紫外线

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B型题 最易破坏病毒包膜的因素是().

A. 干扰素
B. 乙醚
C. 青霉素
D. -70℃
E. 紫外线

W: Welcome, Mc Johnson. Take a seat, please. Our manager will be back soon.M: Thank you. Urn, it’s rather warm these days, isn’t itW: Yes. The weather is quite unusual at this time of year.M: You’re right. Er...do you mind if I take off my jacket thenW: Sure. Make yourself at home.M: Thank you, that’s better. Urn...do you mind if I smoke I notice nobody’s smoking around here.W: Well, I’m sorry, but this is a non-smoking Office building.M: Oh, that’s OK. I’m trying to quit it anyway. By the way, may I use your phone to book a table.., for lunchW: Yeah. Sure. Do you know which restaurant is goodM: Oh, yeah, absolutely.W: Fine. The phone is over there.M: Thank you. Why docs the man use the phone()

A. To book a table for lunch.
B. To book an air ticket.
C. To make an appointment.
D. To ask somebody for help.

下列关于计算机网络的描述正确的是( )。

A. 计算机网络是由负责信息处理并向全网提供可用资源的资源子网和负责信息传输的联络子网组成
B. 计算机网络是由负责信息处理并向全网提供可用资源的服务子网和负责信息传输的联络子网组成
C. 计算机网络是由负责信息处理并向全网提供可用资源的资源子网和负责信息传输的通信子网组成
D. 计算机网络是由负责信息处理并向全网提供可用资源的服务子网和负责信息传输的路由子网组成

What makes EcoNet distinctive is its (broad) (). It serves the largest number of users.

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