下列说法正确的是[ ]
A.纯碱不是碱
B.食盐不是盐
C.火碱不是碱
D.盐酸不是酸
答案：A
计税依据
I don't think I'm late. Excuse me, what's the time? （）
A.It says 8:00. But it‘s 5 minutes slow.
B.I‘m sorry I‘ve forgot the time.
C.I was caught in the traffic jam.
D.I‘m sorry to keep you waiting.
