级检修限度，轮对踏面擦伤深度≤（）mm，连续碾擦长度≤（）mm。
参考答案：0.5；70
—I'm flying to Hainan Island for my holiday this weekend.
—Wonderful! ________ [ ]
A. Have a good time.
B. I hope so.
C. Why not?
D. With pleasure.
While Maggie, a white-collar worker, was at home after work, she ______ doing something to doing nothing.
A. liked B. favoredC. tended D. preferred
