题目

“84消毒液”的主要成分是NaClO，NaClO中Cl的化合价是（ ） A . +1 B . +3 C . +5 D . +7 答案：A排列下面的句子。A. Danny is very happy. B. He asks the waiter if the hotel has a computer. C. Danny misses Steven very much.D. Steven has a computer.E. He wants to send an email to Steven. F. Danny has a friend named Steven. G. The waiter shows him where the computer is.