题目内容

在电阻串联的电路中,电路的端电压 U 等于() 。
A 各串联电阻端电压
B 各串联电阻两端电压的平均值
C 各串联电阻端电压的总和

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2017年我国国内生产总值增长()。
[A] 4.9%
[B] 5.9%
[C] 6.9%
[D] 7.9%

阅读以下说明，回答问题1至问题5。
【说明】
某一个网络地址块192.168.75.0中有5台主机A、B、C、D和E，它们的IP地址及子网掩码如表2-1所示。
5台主机A、B、C、D、E分属几个网段？哪些主机位于同一网段？

SECTION A COMPOSITION (35 MIN)
A donation is not a good way to aid the recovery of earthquake-hit regions. Do you agree？
Write on ANSWER SHEET TWO a composition of about 200 words:
You are to write in three parts.
In the first part, state specifically what your opinion is.
In the second part, provide one or two reasons to support your opinion.
In the last part, bring what you have written to a natural conclusion or make a summary.
You should supply an appropriate title for your composition.
Marks will be awarded for content, organization, grammar and appropriateness. Failure to follow the above instructions may result in a loss of marks.

For all being unrecognized among users, Aspirin ______.