平刀法分推刀片、拉刀片、推拉片、平刀片、抖刀片、正刀片、反刀片、斜刀片等。
参考答案：错
No matter what happens, you should keep _______. Just look on the bright side of things.
A．generous
B．optimistic
C．careful
D．practical
Pipelines are not （）
A.Labor-intensive
B.capital-intensive
C.tech-intensive
D.Low cost and high return
