如果电路只有电抗，短路冲击电流i_ch为超瞬变短路电流的（）。

A:2倍 B:倍 C:/2倍 D:3倍

图示两梁，所用材料相同，受力如图。当两梁各对应截面转角相等时，两梁横截面上最大正应力之比为（）。

A:1：1 B:1：2 C:2：1 D:1：4

1)describe the drawing briefly, 2) explain the intended meaning, and then 3) give your comments. You should write neatly on ANSWER SHEET 2. (20 points)

范文解析
How can a cardiogram be generatedThe picture tells us that it can be drawn by hand．However，just look at the doctor’s sweat covered forehead，and you can find that it is not a joke．[A] In some rural areas in China，the medical facilities are far from sufficient． Residents there have to travel far to get to their nearest hospitals’,and drugstores are surprisingly rare to spot．Even if the residents finally get to a local hospital，they may again suffer from all kinds of shortage ranging from medical equipment to personnel．
Fortunately，[B]the aforementioned phenomenon is gradually be- coming part of the history．The Chinese Central Government has never slowed down its pace to alleviate this problem．[C] Much atten- tion has been given to the three-dimensional rural issues concerning agriculture，countryside and farmers．As a traditional agricultural power，China has been presenting itself as a civilization in pursuit of fairness and equality for all its citizens．
As far as I am concerned，social infrastructure，especially those concerning people’s livelihood such as medical facilities and social welfare，should be given the top priority．[D]I sincerely wish our country would make a big leap forward towards the harmonious society as planned．

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资料1 根据上述材料，指出下列栏目的正确选项： “备案号”栏（）。

A:528289214 B:822014653l C:220146531 D:KJDIF-356

资料1 根据上述材料，指出下列栏目的正确选项： “运输工具名称”栏（）。

A:HONEYWAY B:HONEYWAYl2 C:KJDIF-356 D:DHF32218321

资料1 根据上述材料，指出下列栏目的正确选项： “提运单号”栏（）。

A:DSDF HU/901 B:DHF32218321 C:528489214 D:KJDIF-356