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【多选题】
湿地生态学的主要研究内容A.
湿地生态系统结构和功能
B.
湿地生态系统的物质循环
C.
湿地生态系统的能量流动
D.
湿地生态系统的信息传递
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举一反三
【简答题】A. The growth of the publishing industry. B. The history of paper. C. The uses of paper in the nineth century. D. The composition of wood fiber.
【简答题】与模拟图像传输相比较,数字图像传输具有哪些优越性?
【单选题】This passage is most possibly chosen from______.
A.
a newspaper about war
B.
a scientific paper about adventures
C.
a textbook on space travel
D.
a magazine for tourists
【简答题】听音，选择正确的单词。 1. May I use your ___________? (ruler, book) 2. May I use your ___________? (pencil, paper) 3. May I use your scissors? ___________. (Sure, OK)
【单选题】听力原文：M: I'm still waiting for the clerk to come back and make some copies of this paper for me. W: Why bother him? I'll show you how easy it is to operate the machine. What does the woman mean?
A.
The clerk doesn't like to be bothered.
B.
The machine was just repaired.
C.
She can teach the man to work the machine.
D.
The man shouldn't make any more copies.
【简答题】海洋测量的高程基准: 1 远离大陆的,采用( ); 2 其他,采用 ( ) 。
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