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问题 单项选择题 A1/A2型题

肺癌中发病率最高的是（）。

A.腺癌

B.鳞癌

C.细支气管肺泡癌

D.小细胞癌

E.大细胞癌

答案

参考答案：B

解析：鳞状细胞癌（鳞癌）：在肺癌中最常见，约占50%。

选择题

在下列因素中，不属于影响生物生活的环境因素是（　　）

A．蝗灾

B．光

C．温度

D．水和空气
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单项选择题

TCP/IP （） layer protocols provide services to the application （） running on a computer. The application layer does not define the application itself, but rather it defines （） that applications need—like the ability to transfer a file in the case of HTTP. In short, the application layer provides an （） between software running on a computer and the network itself. The TCP/IP application layer includes a relatively large number of protocols, with HTTP being only one of those. The TCP/IP （） layer consists of two main protocol options—the Transmission Control Protocol (TCP) and the User Datagram Protocol (UDP).

but rather it defines （） that applications need—like the ability to transfer a file in the case of HTTP.

A.services

B.processes

C.applications

D.address
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