—Is ________ name Bob?
—Yes, I’m Bob. [ ]
A. you
B. your
C. my
D. I
答案：B
－What about CCTV fashion show?
－______.[ ]
A. It's just so-so
B. I like her
C. I think so
D. Yes
排烟风机应保证在280℃的环境条件下能连续工作不少于（）min。
A.30
B.40
C.50
D.60
