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There are many wetlands(湿地) in China and some of them have become the world’s important wetlands. The Chinese Yellow Sea Wetlands are among them. They are in Yancheng,Jiangsu Province. They are home of many different kinds of birds and animals. The world’s largest Milu Deer Nature Reserve(自然保护区) is in them. More than 700 milu deer live freely there. The temperature in the wetlands is usually neither too high nor too low. There is a lot of rain and sunshine,too. They are really good places for wildlife. Offering food and home for some special kinds of animals and birds is not the only reason why we need to protect wetlands. Wetlands are important because they also prevent flood. But some people want to change the wetlands to make more space for farms and buildings. This means there will be less and less space for wildlife. Luckily, more and more people are beginning to realize the important of wetlands and wildlife. Every year, on February 2nd many activities are held to tell people more about wetlands around the world. 小题1: Which animal is mentioned in the passage? A                  B                   C                 D 小题2:Usually the weather in the wetlands is ____. A.hot B.mild C.cold D.dry 小题3:The reasons for protecting wetlands are the following except that ______ A.they are home of wildlife B.they can prevent flood C.they offer food to the wildlife D.they will be good farmland 小题4: What can be the best title for the passage? A.China’s wetlands –the Biggest One in the World B.Wetlands --- Home of Wildlife and Human Beings C.Special Animals --- Found in Yellow Sea Wetlands D.Wetlands --- the Last Valuable Land on the Earth
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【简答题】山岭隧道中是通过“以堵为主、 ” 来实现对地下水环境的保护。
【单选题】下列除尘方式中,属于湿式除尘器的是( )
A.
电除尘
B.
旋风除尘
C.
袋式除尘
D.
文丘里除尘
【简答题】硝酸异山梨酯与下列哪些叙述相符() A又名心痛定; B具有右旋性; C水解生成脱水山梨醇及亚硝酸; D遇强热或撞击会爆炸; E为钙通道阻滞药;
【简答题】袋式除尘器属于()除尘器。
【单选题】袋式除尘器属于( )除尘器。
A.
旋风
B.
静电
C.
湿式
D.
过滤式
【单选题】在pH = 10.0 的氨性缓冲溶液中,以0.020 mol / L EDTA滴定相同浓度的Zn2+,已知lg K(ZnY) = 16.5,lg aY(H) = 0.5, lg aZn (NH3) = 5.0 , lg aZn(OH) = 2.4,则化学计量点时pZn值为
A.
6.5
B.
8
C.
11.5
D.
10
【单选题】属于粗净化的除尘设备是( )。
A.
重力沉降室
B.
旋风除尘器
C.
袋式除尘器
D.
静电除尘器
【多选题】硝酸异山梨酯与下列哪些叙述相符
A.
又名心痛定
B.
具有旋光性
C.
为钙通道阻滞药
D.
遇强热或撞击会爆炸
E.
抗高血压药
【多选题】硝酸异山梨酯与下列哪些叙述相符( )
A.
又名心痛定
B.
具有右旋性
C.
水解生成脱水山梨醇及亚硝酸
D.
遇强热或撞击会爆炸
【简答题】输煤系统常用的除尘器类型有()、()、组合除尘。其中袋式除尘器属于()类型的。
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