下面叙述中,正确的是( )。A.计算机的体积越大,其功能越强 B.CD-ROM的容

题型:单项选择题

问题:

下面叙述中,正确的是( )。

A.计算机的体积越大,其功能越强

B.CD-ROM的容量比硬盘容量大

C.存储器具有记忆功能,因此其中的信息任何时候都不会消失

D.CPU是中央处理器的简称

考点:计算机等级考试MSOffice一级MSOffice笔试
题型:单项选择题

根据短文内容,用适当的词完成下列句子。

        In the USA,  there are many kinds of fast food restaurants. The famous restaurants are McDonald's

and Kentucky Fried Chicken( KFC).You look at a menu above the counter, and give money to the waiter. Then you can take your food and sit down or take it away. When you finish your meal, you put the empty container(容器、罐)  and paper in the rubbish bin. There's no need to leave a tip. Many boys and girls

like to go to McDonald's and KFC because they can get gifts there. Today there are more and more

American fast food restaurants in China.

1. McDonald's and Kentucky Fried Chicken are  _      .

2. In McDonald's and Kentucky Fried Chicken the  menu is           _ the counter.

3. After you finish your meal there, you can put the empty container and __      into the

    rubbish bin.

4. There we needn't give ____   to the waiters.

5. Many boys and girls like to go there because they can get          there.

题型:单项选择题

生产过程中耗能高的产品的生产单位,应当执行单位产品()标准。对超过单位产品能耗限额标准用能的生产单位,由管理节能工作的部门按照国务院规定的权限责令()。

题型:单项选择题

几丁质存在于()微生物的细胞壁。

A.真菌

B.革兰氏阳性菌

C.革兰氏阴性菌

D.芽孢杆菌

题型:单项选择题

某农药厂焊工准备进入直径1m,高2m的繁殖锅内焊接挡板。因未有排烟设施,采用了氧气置换,使锅内烟气消失,当焊工进入锅内施焊动火时,发生强烈燃烧。该焊工严重烧伤抢救无效死亡。

请分析氧是一种什么样气体?()

A.易燃易爆气体

B.助燃性气体

C.可燃性气体

D.窒息性气体

E.惰性气体

题型:单项选择题

管路系统的特性曲线是随着()的增加而上升。

A、流量

B、扬程

C、轴功率

D、效率

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