与严重感染相关的是
A. C3缺陷
B. C1抑制物缺乏
C. 细胞表面CR1缺乏
DAF缺陷
E. I
F. HF缺陷
I am too busy these days. I would rather I______time to go to the airport to see you off tomorrow.
A. have
B. had
C. would have
D. have had
You should keep a copy of the application in case you______the original one.
A. had lost
B. lost
C. lose
D. will lose
They captured the thief and______to the policemen.
A. gave him away
B. handed him over
C. run him over
D. went over
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