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问题 单项选择题

下列关于血浆蛋白质组成的叙述，错误的是______

A．是血浆中除水分外含量最多的化合物
B．正常人血浆蛋白质总量为60～70g/L
C．采用盐析法可将血浆蛋白质分成白蛋白、球蛋白及纤维蛋白原
D．脊髓是合成血浆蛋白质的主要器官
E．免疫球蛋白主要来源于浆细胞

答案

参考答案：D

解析：本题主要考查的知识点是血浆蛋白的组成。
合成血浆蛋白质的主要器官是肝脏，所以本题选择D。

单项选择题

全心衰竭（）

A．呼吸停止

B．Cheyne-Stokes呼吸

C．Kussmaul呼吸

D．抑制性呼吸

E．叹息样呼吸
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翻译题

All over the world ,people have cut down millions and millions of trees . Did you know many kinds of animals and plants are now disappearing ? In particular , trees are very important 1. Because they produce oxygen (氧气) and control（控制）the climate .

Now , many people are beginning to take these problems seriously . They are making wind generators (发动机) and planting new trees . There is a group in our class that picks up the garbage at school . Whether the weather is hot or cold we always do it . 2. I think we are setting a good example to everyone else.

I hope , in the future , the sky can be clearer , the water cleaner , and the land greener . Then both people and animals can have a greener Earth .
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