搜题请搜索小程序“爱下问搜题”
问题 单项选择题

二进制数11000000对应的十进制数是

A．384

B．192

C．96

D．320

答案

参考答案：B

解析： 二进制数转换成十进制数的方法是按权展开。11000000B=192D。

填空题

在下列各句的空白处填入一个最恰当的单词。

1.  Don't make _____. The baby is sleeping.

2.  She is married, because she wears a ring on her ring _____. 

3.  In China, an old saying goes like this, "Kill two birds with one _____. 

4.  We have _____ up all the papers.  Can you give me some more?

5.  These bags are too heavy, so I can't _____  them on to the bus.

6.  There are four _____  in the world.  The Pacific is the biggest.

7.  The boy is a _____  boy.  Nobody believes him.

8.  —I don't know _____ volleyball it is.

     —I think it might be Grace's.

9.  John is very nervous now because he has a job i _____ this afternoon.
查看答案
单项选择题

当发现井道内进水时，一般将电梯开到（），将电梯的电源切断。

A、低于进水楼层

B、高于进水楼层

C、井道下端站

D、任何位置
查看答案