--- Hi, Terry, can I use your computer for a while this afternoon?--- Sorry. __ . A． It' s repairedB． It has been repairedC． It's being repairedD． It had been repaired
--- Hi, Terry, can I use your computer for a while this afternoon?
--- Sorry. __ . A． It' s repaired
B． It has been repaired
C． It's being repaired
D． It had been repaired
相关考题：
–Hi. I’m your neighbor. My name is Steve Edwin.–(). A、What are you from?B、Oh.C、Yes, I know.D、Hi. It’s good to see you. I’m Jane Peterson.
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When introducing yourself to someone you don't know at a party, what would you say?()A、Hi, I'm**B、May I introduce myself to you and at the same time I make your acquaintance?C、Hi, I'd like to meet you.D、Hi, I'm .Do you know many people here?
--- Hi, Terry, can I use your computer for a while this afternoon?--- Sorry. .A. It' s repaired B. It has been repairedC. It's being repaired D. It had been repaired
用氢卤酸分解酚醚时，是HI还是HBr好？为什么？A．HBr好，因为HBr比HI酸性强，Br-亲核能力I-强。B．HBr好，因为HBr比HI酸性弱，Br-亲核能力I-弱。C．HI好，因为HI比HBr酸性强，I-亲核能力比Br-强。D．HI好，因为HI比HBr酸性弱，I-亲核能力比Br-弱。
下列代码运行时不会产生错误的是？A．print 'Hi, I'm fine'B．print "Hi, I'm fine"C．print 'Hi, I'm fine"D．print "Hi, I'm fine'
已知关系R（H,I,J,K,L,M,N),函数依赖集F为{ HI→JM,HK→JL,HN→I,K→J,I→K },问:F的最小覆盖为_________。A．{ HI→M,HK→J,HN→I,K→J,I→K}B．{ HI→M,HK→L,HN→I,K→J,I→K}C．{ HI→J,HI→F,HK→J,HK→L,HN→I,I→K,K→J}D．{ H→M,I→M,HK→L,H→I,N→I,K→J,I→K}
10、用氢卤酸分解酚醚时，是HI还是HBr好？为什么？A．HBr好，因为HBr比HI酸性强，Br-亲核能力I-强。B．HBr好，因为HBr比HI酸性弱，Br-亲核能力I-弱。C．HI好，因为HI比HBr酸性强，I-亲核能力比Br-强。D．HI好，因为HI比HBr酸性弱，I-亲核能力比Br-弱。