成形磨削
参考答案：
是成形表面精加工的一种方法。可在成型磨床或平面磨床上进行。
－Would you like to see the film Confucius(孔子)with me this evening?
－I’d love to，but I_______ It.
[ ]
A. had seen
B. have seen
C. watch
D. am watching
硫代硫酸钠属于水基压裂液的抗高温稳定剂。（）
