给水泵的任务是将除过氧的饱和水,提升至一定()后,连续不断地向()供水,并随时适应锅炉对给水量的变化。
参考答案:压力、锅炉
the course very difficult, she decided to move to a lower level.
A.Find
B.Finding
C.To find
D.Found
骨盆骨折最易导致
A.后 * * 损伤
B.直肠损伤
C.子宫损伤
D.肾脏损伤
E.输尿管损伤