皮皮学，免费搜题
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【多选题】
补体的生物学作用包括A.
溶解细胞、细菌和病毒
B.
调理作用
C.
ADCC效应
D.
清除免疫复合物
E.
清除凋亡细胞
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【单选题】If he _________ here now, he would be doing everything he could to help you.
A.
were
B.
is
C.
will be
D.
be
【单选题】-30. If he—— here now, he would be doing everything he could to help you.
A.
were
B.
is
C.
will be
D.
be
【简答题】阅读理解。根据短文内容填空。 Good morning. Here's the weather report by Jane White. Today the weather is wet. It's windy, too. It's 10℃ now. I'm in Shanghai. You can wear your sweater and jeans. Have a good day! 1....
【单选题】Why are weather-boarded houses painted white according to the passage?
A.
To contrast with the colored window-frames and doors.
B.
As a break with the traditional coloring.
C.
Because this is the tradition.
D.
To cover the original tarred surface.
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