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【单选题】
毒理学研究的最终目的是研究()对人的损害作用及其机制。A.
内源化学物
B.
外源化学物
C.
内分泌物质
D.
体内代谢物
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【简答题】完形填空 The most unforgettable thing during my long summer holiday last year, of course is my trip_ 1 _ England.This was my first time to go abroad, so it really made me_ 2 _. There were quite a lot of i...
【单选题】听力原文：W: During the last thunder storm, I noticed several leaks in my bedroom ceiling and they really caused a mess. M: Maybe you have some broken tiles. I have the phone number of a good roofing compa...
A.
The roof of the woman's house needs to be repaired.
B.
The roof of the man's house has several bad leaks.
C.
The woman's bathroom was badly damaged.
D.
The man works for a roofing company.
【单选题】听力原文：W: During the last thunder storm, I noticed several leaks in my living room ceiling. M: Maybe you have some broken shingles. I have the number of a good roofing company. Q: What can we conclude f...
A.
The woman is afraid of thunderstorms.
B.
The man works for a roofing company.
C.
The roof of the woman's house needs repairing.
D.
The man's roof is leaking.
【简答题】粒细胞减少症是指外周血中性粒细胞绝对值< 109/L 粒细胞缺乏症是指外周血中性粒细胞绝对值< xl09/L
【单选题】Many fantastic photos __________ during my last trip to Beijing. [ ]
A.
took
B.
are taken
C.
were taken
【单选题】粒细胞缺乏症是指外周血中性粒细胞绝对值为（）
A.
0
B.
＜0.3×10 9 /L
C.
＜0.5×10 9 /L
D.
＜0.8×10 9 /L
E.
＜1.0×10 9 /L
【简答题】洛必达(LHospital)法则 若f(z)及g(z)在点z0解析，且 f(z0)=g(z0)=0，g(z0)≠0， 则(试证)
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