皮皮学，免费搜题
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【简答题】
移民流行病学是对移民人群的疾病分布进行研究，以探讨病因。若移民中某病的发病率及死亡率与原居住地人群的发病率或死亡率接近，而与移民地当地居民人群的发病率及死亡率不同，则引起发病率及死亡率差别的主要原因
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举一反三
【单选题】—Do you think I should accept his invitation, Jim? — If I were you, I certainly would.
A.
None of your business.
B.
It depends.
C.
Why not?
D.
I don't think so.
【单选题】— What do you think I should do? — I think you should call him back_______.
A.
in every respect
B.
with respect
C.
out of respect
D.
in several respects
【简答题】-Whose advice do you think I should take? -___. A. You speak B. That's it C. It's up to you D. You do it
【简答题】BBS文案推广的步骤包括( )、( )、( )、( )、( )。
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