_ dress is this ? It is [ ]
A. What , mine
B. Whose , mine
C . Whose , me
答案：B
Which is ___ way to go to school, by bus, by bike, or on foot?[ ]
A. the most tiring
B. the tiringest
C. more tiring
D. tiringer
500kV变压器，运行油中含气量应该小于等于（）%。
A.1
B.2
C.3
D.4
