打开位置灯开关，（如图所示）亮起。

Mr. Li has ordered ___ for the school lab.

A．three equipments

B．three pieces of equipments

C．three pieces of equipment

D．three pieces equipment

全球通VIP俱乐部高铁贵宾厅温馨提醒客户误车可在（）天免费改签一次

A、当天

B、两天内

C、一周内

D、以上均可

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.

5（）

A.history 

B.shortcoming 

C.achievement 

D.advantage

输血过程中出现荨麻疹（）

A.红细胞血型不合

B.白细胞抗体

C.血小板抗体

D.血浆蛋白抗体

E.细菌污染

请在“答题”菜单下选择“字处理”命令，然后按照题目要求再打开相应的命令，完成下面的内容，具体要求如下：
注意：下面出现的所有文件都必须保存在考生文件夹下。

(1) 将标题段(“GDP与GNP的区别”)文字设置为三号红色阳文黑体、字符间距加宽6磅、并添加黄色底纹。
(2) 将正文各段落(“GDP……的概念。”)中的西文文字设置为五号Arial字体(中文文字字体不变)；设置正文各段落左、右各缩进1字符，首行缩进2字符；
(3) 在页面底端(页脚)居中位置插入页码，并设置起始页码为“Ⅲ”，首页显示页码。
(4) 将文中后11行文字转换为一个11行4列的表格；设置表格居中，表格第一列列宽为2厘米、其余各列列宽为3厘米、行高为0.6厘米，表格中所有文字中部居中；
(5) 设置表格外框线为0.75磅蓝色双窄线、内框线为0.5磅红色单实线；按“人均GDP(美元)”列 (依据“数字”类型)升序排列表格内容。