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问题 单项选择题

肾动脉水平以下腹主动脉呈梭形，局限性增宽，范围5.6cm×4.7cm×4.2cm，瘤壁内见多个强回声，后伴声影，CD-FI：见明显杂色血流信号，超声提示（）。

A.夹层腹主动脉瘤

B.假性腹主动脉瘤

C.腹主动脉大动脉炎

D.腹主动脉瘤并附壁血栓

答案

参考答案：D

单项选择题

It is clear that some chemicals can damage the health of animals and humans. (1) , this is not the only problem that (2) be caused by the careless use of chemicals. Chemicals can also (3) the ecological balance of the environment. If the ecological balance is disturbed, the results can be (4) serious.The (5) of DDT illustrates the problem. DDT, a chemical which kills insects, at first seemed to be a perfect answer (6) many problems. It would control insects that caused dangerous diseases, (7) insects that caused billions of dollars of damage to crops every year. Governments permitted and even (8) the use of DDT. Farmers in many countries (9) to spray it on their crops. The (10) results were good. Damage to crops (11) down, and profits went up. However, the chemical had effects which the scientists didn’t see in (12) . First, it also killed insects which were the (13) enemies of the harmful insects and which were therefore beneficial to farmers. Second, and perhaps worse, DDT did not kill (14) harmful insect. A few insects had natural resistance to the chemical. They (15) and reproduced in large numbers. In a few years there were large numbers of insects which were not (16) by DDT, and there were (17) insects which Could act as natural (18) on these new "super-insects". Finally, it became clear that DDT was not solving the insect problem. In fact, it was making the problem worse. It (19) became necessary to find a second (20) for the effects of the first.

第（15）空应选择（）

A．lived

B．died

C．cried

D．survived
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问答题

打开考生文件夹下的Word文档WDA052.doc，其内容如下：
[WDA052.doc文档开始]

学号 姓名 高等数学 英语 普通物理
99050201 李响 87 84 89
99050216 高立光 62 76 80
99050208 王晓明 80 89 82
99050211 张卫东 57 73 62
99050229 刘佳 91 62 86
99050217 赵丽丽 66 82 69
99050214 吴修萍 78 85 86
[WDA052.doc文档结束]
按要求完成下列操作并以原名保存。
(1) 在表格右侧增加一列、输入列标题“平均成绩”；并在新增列相应单元格内填入左侧三门功课的平均成绩。
(2) 设置表格列宽为3cm，表格中第1行文字水平居中、其他各行文字左对齐；设置外框线为红色 1.5磅双窄线、内框线为红色0.75磅单实线；并以原文件名保存文档。
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