问题
单项选择题
大气环境风险评价，首先（）。
A.计算浓度分布
B.计算浓度最大值和最小值
C.计算损害范围
D.计算损害值
答案
参考答案：A
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大气环境风险评价，首先（）。
A.计算浓度分布
B.计算浓度最大值和最小值
C.计算损害范围
D.计算损害值
参考答案：A
完形填空 (共20小题；每小题1分，满分20分) 阅读下面短文, 掌握其大意,然后从各题所给的四个选项A、B、C、D中, 选出最佳选项, 并在答题卡上将该项涂黑。 Your parents have just told you the news—you’re moving to a new house. How in the world will you tell your friends? First, CALM DOWN. 36 a while to catch your breath and let the news sink in before you call your friends. Make 37 you have the whole story before you start telling people. 38 friends who need to hear the news from you. Think about 39 you’d like to tell them, and when. A face-to-face talk may be the best way to let 40 frie- nds know, but the phone may be fine for others. 41 after school or on a weekend is good. You don’t want to drop big news like this on your friends during the school day. HOW SHOULD YOU START? Say something like, “I have some big news I want to share 42 you.” That will prepare your friend for what is going to come. Then say, “I’m 43 .” Tell him as many details as you know, 44 let him know how you feel about it. Each friend will have a different 45 to the news, so BE PREPARED. Some girls may 46 crying. But some may get 47 , some may get silly, and some may give you the 48 that they don’t care. 49 happens, be sure to talk to your friends if the things they do and say 50 your feelings. Ask friends not to tell anyone else 51 you say it’s OK. You could say, “Please don’t tell 52 until Monday.” That will give you a 53 to let close friends hear the news from you first. Ask your parents for help if you need it. A(n) 54 may be able to help you 55 the right things to say and help you understand your friend’s reactions.
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