钢杆件矫正应注意冷矫时()加力。
A、快速
B、缓慢
C、任意
参考答案:C
When I was a child, I used to _____ strawberry. [ ]
A. liking
B. like
C. liked
D. likes
不属于混悬剂的物理稳定性的是
A.混悬粒子的沉降速度
B.微粒的荷电与水化
C.混悬剂中药物的降解
D.絮凝与反絮凝
E.结晶生长与转型