湖泊、水库水质取样,取样位置上取样点的布设原则有()A.大中型湖泊、水库,当平均水深

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问题:

湖泊、水库水质取样,取样位置上取样点的布设原则有()

A.大中型湖泊、水库,当平均水深小于10m时,设在水面下0.5m处,但此点距底不应超过0.5rn

B.大中型湖泊、水库,平均水深大于10m时,先查明其水温有无分层现象,如有斜温层,在水面下0.5m和斜温层以下,距底0.5m以上处各取一个水样

C.小型湖泊、水库,当平均水深大于10m时,在水面下0.5m和水深10m并距底0.5m以上处各设一个取样点

D.小型湖泊、水库,水深小于10m时,在水面下和距底0.5m以上处各设一+取样点

考点:环境科学技术及资源科学技术环境影响评价环境影响评价题库
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将可比实例的实际价格转变成正常价格的修正,称为()修正。

A.交易日期

B.交易情况

C.区位状况

D.权益状况

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指出图中的两处操作错误:

(1)______

(2)______.

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图是新中国成立以来四个不同时期的人口年龄结构金字塔图,按时间先后排序正确的是

A.①②③④  B.①③④②  c.①②④③  D.①③②④

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Surfing is one of the world’s most popular water sports. It   1 (one) started on the island of Hawaii. Now it  2 (enjoy) by people all over the world. Hawaii is famous for its beautiful  3 (beach). Every year, water sports,   4 (especial) swimming and surfing attract large numbers of tourists to the islands.

Waikiki is one of the  5 (good) beaches for surfing in Honolulu. It is neither too hot nor too cold all the year round. No matter what the weather is like, you can always find surfers out  6 (ride) the waves.

There is a big  7 (different) between serious surfers and the so-called “beach boys”. Serious surfers live  8 (surf) and nothing can stop them. They surf three  9 (time) a day if possible.

For example, Jake Booth, a 21-year-old man gave up his job in the San Francisco library a year ago. He  10 (be) in Honolulu ever since. In the morning he works as a part-time assistant in a surf shop. At night he works in a restaurant as a waiter. Although he hasn’t got a very good job, but still feels  11 (happily). He hopes that one day  12 (surf) will be an event of the Olympic Games.

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