十进制数221用二进制数表示是A．1100001 B．11011101 C．0011

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问题单项选择题

十进制数221用二进制数表示是

A．1100001

B．11011101

C．0011001

D．1001011

答案

参考答案：B

解析：十进制向二进制的转换采用“除二取余”法。

单项选择题

Speaker A.. Are you going to your family reunion this Christmas holiday Speaker B:______

A．As a matter of fact, I don't mind it at all.

B．I do. I've been excited about it for a long time.

C．However, my parents and I are going to take a trip to Hawaii.

D．You bet. All my uncles and aunts will take their children along, too.

单项选择题

统计数据的（）是整个统计工作的灵魂。

A.准确、及时

B.准确、及时、方便

C.真实、准确、完整、及时

D.真实、准确、方便、及时