我国目前开展的海洋灾害风险评估和区划工作包括()灾种。①风暴潮;②海啸;③海浪;④海

题型:单项选择题

问题:

我国目前开展的海洋灾害风险评估和区划工作包括()灾种。

①风暴潮;

②海啸;

③海浪;

④海冰;

⑤海平面上升。

A、①②③⑤

B、①②③④

C、②③④⑤

D、①②③④⑤

考点:地球科学海洋科学导论海洋科学导论题库
题型:单项选择题
完形填空。
  How can you think in English? I think the best way is to practice as what a
football player does every day. During the   1   the football player will pass the
ball to his teammates over and over again. So he won't have to   2   passing the
ball in the game, he will just do it. You can   3   yourself to think in English this
way. The first step is to think of the words that you use daily, simple everyday
words   4   book or shoe or tree. For example, whenever you   5  a "book" you
should think of it in English instead of in your mother language.
  After you have learned to think of several words in English, then move on to
the next step-thinking in   6   . Listening and repeating is a very useful   7   to
learn a language. Listen first and don't care too much about   8   you fully
understand what you're hearing. Try to repeat what you hear. The more you
listen, the   9  you learn. After you reach a higher level,   10  having
conversations with yourself in English. This will lead you to think in English.
( )1. A. practice
( )2. A. wait for
( )3. A. allow
( )4. A. in  
( )5. A. buy
( )6. A. sentences
( )7. A. idea
( )8. A. which
( )9. A. harder
( )10. A. remember
B. break
B. think about
B. train
B. about
B. keep
B. passages
B. step
B. whether
B. less
B. stop
C. game
C. look at
C. tell
C. like
C. borrow
C. lessons
C. way
C. how
C. later
C. start
D. day    
D. give up
D. ask    
D. from  
D. see    
D. classes
D. pan    
D. why    
D. more  
D. finish
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收缩压低于何值可诱发肝损害()。

A.60mmHg

B.65mmHg

C.70mmHg

D.75mmHg

E.80mmHg

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不属于氢氧化钙特性的是()

A.呈弱碱性

B.呈弱酸性

C.pH为9~12

D.能够促进牙本质桥的形成

E.具有一定抗菌作用

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动脉粥样硬化是腹主动脉瘤常见起因,其最常见的形态是()

A.梭形

B.囊状

C.袋状

D.夹层

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泡心细胞是以下哪一种细胞延伸到胰腺腺泡内而形成的()。

A.胰岛细胞

B.腺泡细胞

C.小动脉的内皮细胞

D.闰管上皮细胞

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