搜题请搜索小程序“爱下问搜题”
问题 单项选择题

下列4个无符号十进制整数中，能用8个二进制位表示的是

A．257

B．201

C．313

D．296

答案

参考答案：B

解析： 十进制整数转成二进制数的方法是“除二取余”法，得出几选项的二进制数。其中 201D=1100100lB，为八位。

改错题

文中共有10处语言错误，每句中最多有两处。错误涉及一个单词的增加、删除或修改。

增加：在缺词处加一个漏字符号( ∧），并在该词下面写出修改后的词。

删除：把多余的词用斜线( \）划掉。

修改：在错的词下划一横线，并在该词下面写出修改后的词。

注意：1.每处错误及其修改均仅限一词；

2.只允许修改10处，多者(从11处起）不计分。

Great changes have been taken place in my village. Ten years ago, the small and low houses, which lie on the north of a lake, produced much waste. As the result, the lake was serious polluted. To the west was a sandy field, that was the source of dust. Better still, a brickyard on the southwest side of the lake used up a great deal good soil. Now the poor house have been replaced by green trees and the brickyard by tall buildings. The sandy field that the villagers used to ploughing has been covered with fruit trees. On the lake the villagers often spend his spare time boating and fishing.
查看答案
单项选择题 A3/A4型题

患者，女，26岁，已婚。月经时而过多，时而淋漓，色淡质稀，气短神疲，面色苍白，或面浮肢肿，手足不温，或饮食不佳，舌质淡苔薄白，脉弱或沉弱其证候是（）

A.肾阳虚

B.脾虚

C.气虚

D.血虚

E.肾阴虚
查看答案