一个数的最大因数是24，这个数是（ ），这个数最小的倍数是（ ）。
24；24
The man is teaching in our school, but，believe it or not，he __ as a business man for 8 years.
A．worked
B．was working
C．had worked
D．has been working
具有活血平肝功能的药是
A．CUAB．CEAC．CBAD．CMAE．E-mail
