皮皮学，免费搜题
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搜题
【单选题】
α地中海贫血最主要的发病机制是( )。A.
点突变
B.
基因缺失
C.
mRNA前体加工障碍
D.
融合基因
E.
点突变
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】—Susan, why are you still here? They are all ready to start. —I’m sorry, but I when to leave.
A.
don’t tell
B.
didn’t tell
C.
wasn’t told
D.
didn’t told
【简答题】用简便方法计算。 （1） - + - （2）1- - （3） + + + （4） + + （5） + + + （6） - +
【单选题】听力原文：M: We don't have to start for the stadium yet. Wouldn't you like something else? W: No, thanks. You'd better tell her to bring our check. It'll take a while to find a parking place, especially wi...
A.
A restaurant.
B.
The station.
C.
The stadium.
D.
A star.
【简答题】Don't start giving me problems otherwise I'll have to be very ________ indeed. (pleasant)
【单选题】有下列程序： #include voidmain（ ） { ints[12]={1，2，3，4，4，3，2，1，1，1，2，3)，c[5]= {0}，i； for(i=0；i<12；i＋＋)c[s[i]]＋＋； for(i=1；i<5；i＋＋)printf("％d"，c[i])； printf("＼n") } 程序的运行结果是（ ）。
A.
1234
B.
2344
C.
4332
D.
1123
【简答题】Don’t start giving me problems ; otherwise , I’11 have to be very (pleasant) ____________ indeed.
【单选题】Why __ practice again and again?
A.
not to start to
B.
don’t start
C.
not start
D.
not start to
【简答题】They are teachers and don't realize _____ to start and run a company. (A) what it takes (B) what takes it (C) what they take (D) what takes them
【单选题】听力原文：W: When is the show supposed to start? M: Don't worry. It doesn't start until 8:30. We have still got 20 minutes. Q: What's the time now? (17)
A.
8:10.
B.
8:20.
C.
8:30.
D.
8:40.
相关题目：
【单选题】Why __ practice again and again?
A.
not to start to
B.
don’t start
C.
not start
D.
not start to