在旋转的轧辊间改变钢锭或钢坯形状和尺寸的压力加工过程称为轧钢。
参考答案：对
根据所给的首字母、音标或中文提示，写出单词。每空只填一词。
1. Li Hua plays the piano t_______ a week.
2. Gina likes art very much. She wants to join an art c_______.
3. —Jack, could you please l_______ me your bike? Mine 1is broken. —Certainly.
4. We should _______ / w/ our hands before meals.
5. The girl is a little _______ / /. She is afraid to speak in public.
6. Bob's birthday is in _______/ ma:(r) /.
7. We can't _______(投掷) stones at the window.
8. Mary has a _______(白色) dress.
9. I think it's best to travel to Harbin in _______(冬天).
10. I bought a new _______(雨伞) in the shop last weekend.
甲、乙两数的平均数是3.1，乙、丙两数的平均数是4.2，甲、丙两数的平均数是3.4，甲、乙、丙三个数的平均数是______．
/ our hands before meals. 
/. She is afraid to speak in public. 
/.