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问题 补全对话，情景问答
读一读，选一选，完成对话。
A. Do you have a library?
B. Where is the canteen?
C. Do you have lunch at school?
D. How many students are there in your class?
A: Welcome to our school.  This is my classroom.
B: 1.____________________?
A: Forty.
B: 2.____________________?
A: Yes, we have.
B: 3.____________________?
A: It's on the first floor.
A: 4.______________________?
B: Yes, we have lunch at school.
答案

1-4. D A B C

单项选择题

鉴别革兰阳性菌脓毒症与革兰阴性菌脓毒症中，哪项是错误的

A．致病毒素：前者为外毒素，后者为内毒素

B．热型：前者为稽留热或弛张热，后者为间歇热

C．皮疹：前者多见，后者少见

D．休克：前者发生早，持续长，后者发生晚，持续短

E．转移性脓肿：前者多见，后者少见
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名词解释

成岩裂隙水
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