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问题 单项选择题

“白板说”；“龙生龙，凤生凤”；“严师出高徒，棍棒底下出孝子”的认识分别体现了儿童发展观中的( )

A．环境决定论，遗传决定论，辐合论

B．环境决定论，辐合论，教育决定论

C．遗传决定论，环境决定论，教育决定论

D．环境决定论，遗传决定论，环境决定论

答案

参考答案：D

单项选择题

Remote administration types are an example of one kind of (71) malicious software, the Trojan horse, or more simply Trojan. The purpose of these programs isn’t replication, (72) to penetrate and control. That masquerade as one thing when in fact they are something else, usually something destructive. There are a number of kinds of Trojans, including spybots, (73) report on the Web sites a computer user visits, and keybots or keyloggers, which record and report the user’s keystrokes in order to discover passwords and other confidential information.

RATS attempt to give a remote intruder administrative control of an infected computer. They work as (74) pairs. The server resides on the infected machine, while the client resides elsewhere, across the network, where it’s available to a remote intruder. Using standard TCP/IP or UDP protocols, the client sends instructions to the server. The server does (75) it’s told to do on the infected computer.

（72）处填（）。

A．and

B．however

C．but

D．therefore
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单项选择题

平面一般力系简化的结果，若主矢等于零，主矩也等于零，则力系（）。

A、平衡

B、为一个力

C、为一个力偶

D、为一个力加上一个力偶
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