I'm afraid I _____ a little late for the class. [ ]
A. maybe
B. may be
C. may
D. can be
答案:B
I'd like to go to places ____ the people are very friendly. [ ]
A. that
B. which
C. who
D. where
排量大于50ml且小于或等于100ml的摩托车噪声按GB(16169-1996)规定应不大于()。
A.76dB[A]
B.80dB[A]
C.83dB[A]
D.85dB[A]