如果增大ZL型螺杆钻具的液压马达级数,那么其()也会相应增大。
A、钻压
B、转速
C、扭矩和输出功率
D、排量
参考答案:C
单句改错。
1. She hates to threaten by anybody. ______
2. He is not likely to have been notifying about it. ______
3. Have you got ready for the meeting holding? ______
4. The cleaning is to finish by midday. ______
5. I'm going to the post office. Do you have any letters to post? ______
6. The dead woman is said to have been badly treating. ______
库房结构必须为墙、顶板、地面()
A、4面钢筋混凝土现浇
B、6面钢筋混凝土现浇
C、5面钢筋混凝土现浇
D、3面钢筋混凝土现浇