我国一些现役单旋翼直升机的旋翼旋转方向（）
A.多为俯视顺时针旋转
B.多为俯视逆时针旋转
C.生产过程中随机产生
参考答案：A
根据句意和首字母填入合适的单词
1. I often do c____at home on Sundays.
2. Taipei is the largest i_____in China.
3. Can you t_____this sentence into Chinese?
4. This job is r_____to do,so I like it very much.
5. This trip is so u______that all the students are very frustrated.
融资比率指______占全部资金来源的份额。
