Firewall is a (74) mechanism used by org

下面有三段电视节目内容的解说词,请根据节目名称选择其相应的内容。

A. The lost world is an exciting American film. People, especially school students, may like it better.

B. Even if you could buy the world, you could not buy a happy family, good friends or knowledge.

C. When you need help for your homework, go to the library. You may find magazines, newspapers, and big dictionaries there. They can always help you.

小题1:        -----Money Isn’t Everything

小题2:        -----Activities For Free Time

小题3:        -----Study Tools(工具)

小题4:You have watched kinds of TV programmes. What TV programme do you like best? Why?

我国有“煤海”美称的省区是[ ]

A．山西

B．四川

C．辽宁

D．台湾

下列图示与对应的叙述相符的是(    )

图1             图2           图3               图4

A．图1表示反应2NO(g)+2CO(g) N₂(g)+2CO₂(g)平衡常数K 随NO物质的量的变化

B．图2中表示反应2A(g) + B(g)2C(g) ΔH > 0的平衡常数K随温度的变化

C．图3表示压强对可逆反应2A(g)+2B(g)3C(g)+D(s)的影响，乙的压强比甲的大

D．据图4，若除去CuSO₄溶液中的Fe³⁺可向溶液中加入适量CuO至pH在5左右

对运算器的主要功能说法不正确的是（）

A、进行算术运算和逻辑运算

B、运算器又称为算术逻辑单元

C、完成加减乘除运算

D、也称为中央处理单元