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【单选题】
Reducing the gap between rich and poor is one of the main ___________ facing the government.A.
challenges
B.
crises
C.
currents
D.
charges
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反馈参考答案：
举一反三
【单选题】热沉淀法检测本周蛋白
A.
加热 90℃时出现沉淀
B.
可检出血中游离的免疫球蛋白轻链
C.
方法简便易行，敏感度高
D.
能对轻链做出定量分析
E.
不能确定轻链的型别
【单选题】The car was in good working ______ when I bought it a few months ago.
A.
order
B.
form
C.
state
D.
circumstance
【单选题】I bought a dress for only 20 dollars in a sale; it was really a good ______.
A.
advantage
B.
advertisement
C.
market
D.
bargain
【单选题】— What do you think of this novel? — _________
A.
I’ve read it.
B.
It’s very good.
C.
I bought it yesterday.
【单选题】听力原文：W: Has your brother bought this book yet? M: He bought a history book,but the English textbook was sold out. Q: Which book has the man's brother got? (5)
A.
An English textbook.
B.
A Chinese textbook.
C.
A chemistry book.
D.
A history book.
【单选题】I have bought a good book, _____ that will surely interest _____ of the students. [ ]
A.
one; everyone
B.
the one; everyone
C.
one; every one
D.
the one; every one
【多选题】热沉淀法检测本周蛋白
A.
加热90℃时沉淀溶解
B.
可检出血中游离的免疫球蛋白轻链
C.
方法简便易行，敏感度高
D.
能对轻链做出定量分析
E.
不能确定轻链的型别
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