问题
单项选择题
下列关于血液组成的叙述，错误的是
A．血液由血浆和血细胞组成
B．血浆中水分的含量约占90%
C．血浆中电解质含量与组织液基本相同
D．血浆中蛋白质浓度高于组织液
E．与抗凝剂混匀的血液待红细胞沉降后，上面的液体部分称为血清
答案
参考答案：E
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下列关于血液组成的叙述，错误的是
A．血液由血浆和血细胞组成
B．血浆中水分的含量约占90%
C．血浆中电解质含量与组织液基本相同
D．血浆中蛋白质浓度高于组织液
E．与抗凝剂混匀的血液待红细胞沉降后，上面的液体部分称为血清
参考答案：E
| 用方框中所给单词的适当形式填空，每词限用一次。 | |
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| 1. Tony is funny singer with ___________ eyes and curly hair. 2. Mike often _________ his weekends going hiking with his classmates. 3. Turn left and you will see the library ________ the supermarket and bank. 4. Many people prefer to travel by plane. They think a plane is faster and ______ than a train. 5. Lucy can't go to the picnic this _________ afternoon because she is having a speech contest. |