In the fourth paragraph the writer is angry because________.
A. not many of the world"s richest countries have banned plastic bags
B. not many countries have banned plastic bags
C. countries are not developing countries
D. most of the countries are African
涉及两个以上单位的配合操作或需要根据前一项操作后对电网产生的影响才能决定下一项操作的，必须使用()。
A. 即时指令;
B. 逐项指令;
C. 综合指令。
进行配电设备停电检修前，应断开可能送电到待检修设备、配变各侧的所有线路(包括用户线路)断路器(开关)、隔离开关(刀闸和跌落熔断器(保险)，并验电、()后，才能进行工作。
A. 检查
B. 放电
C. 接地
People in New York________. 查看材料
A. don"t care about emergencies
B. are used to alarm
C. are attracted by sounds
D. don"t hear loud noises
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