题目内容

Wilson病患者血液主要缺乏（）

A. α1-抗胰蛋白酶
B. 铜蓝蛋白
C-反应蛋白
D. 免疫球蛋白
E. 甲胎蛋白

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Why was Tom late for class

A. He got up late.
B. He went to bed late.
C. He was iii.

用煌焦油蓝乙醇溶液做染液计数网织细胞时，哪一步是错误的（）

A. 取血液和染液各一滴，混匀后推片
B. 染色时间5～10分钟
C. 在室温低时，染色时问还应适当延长
D. 在油镜下计数1000个红细胞中的网织细胞数
E. 为了便于计数，可用Miller窥盘

生活史属于半变态的节肢动物是（）

A. 蚊
B. 蝇
C. 蛉
D. 蚤
E. 虱

Mr. Smith was a dance teacher. He was a nice man and always had a lot of students. One year he moved to a new town, and was soon teaching a lot of students in the dance school there, but he decided to move again to a big city, "I’ll have more work there," he thought When one of his woman students heard that he was going to leave, she said to him, "The teacher to take your classes won’t be as good as you." Mr. Smith was happy when he heard this, but he said, "Oh, no! I’m sure he will be as good as I am or even better." But she said, "No, five teachers have come and gone while I’ve been here, and each one was worse (更坏的，更差的) than the last one.\ The woman student thought that ______ of all the six teachers.

A. Mr. Smith did the worst (最坏的) in teaching
B. Mr. Smith did the best (最好的) in teaching
C. Mr. Smith did as well as other five teachers