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【简答题】
每年3月22日是世界，2008年主题是“跨界水--共享的水、共享的机遇”．人生存离不开空气、水，当人类步入现代文明的21世纪之时，人的生命的源泉--水，却向人们发出了警告：资源性缺水、工程性缺水、水质性缺水．然而，在生活中我们每个人又为节水做了些什么呢？我们的地球表面 3 4 被水覆盖，但是世界上有20多亿人口面临淡水危机，减少污染和节约用解决这一危机的重要措施．请回答： （1）水体污染的主要来源是______、工业“三废”、农业污染． （2）列举节约用水的两种方法：
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【简答题】苯妥英钠的药理作用及主要不良反应有哪些?
【单选题】—It's getting late. I'm afraid I must be going now:—OK. ______ .
A.
Don't hurry
B.
Wait a moment
C.
Wall slowly
D.
See you
【单选题】听力原文：W: Why don't we drive downtown now? M: Wouldn't it be better to wait after rush hour? Q: What does the man mean? (17)
A.
He's in a hurry to get there.
B.
It would be better to wait an hour for the car.
C.
They should leave later to avoid traffic.
D.
He would rather not drive.
【单选题】听力原文：W: I only want to get a can of juice to my room. M: You don't have to wait in the food line for that. There's a machine near that stack of trays. Where does this conversation probably take place?
A.
At a movie theatre.
B.
At a cafeteria.
C.
At a supermarket.
D.
At a laundry.
【单选题】—I’m going to West Lake on vacation. —____
A.
Don’t wait.
B.
I’m sorry to hear that.
C.
Have a good trip!
D.
Bad luck!
【单选题】---- Don’t jump the ______. Go and wait your _____, please. ---- Oh, I’m sorry.
A.
turning; queue
B.
queue; turn
C.
queue; turning
D.
turn; queue
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