There are many people who have a          like yours, but they don’t believe they have the power to do anything to improve our environment.

A．settlement

B．commitment

C．disagreement

D．equipment

有排水要求的部位应做滴水线（槽），滴水线（槽）应整齐顺直，滴水线应（），滴水槽的宽度和深度均不应小于（）。

A.内高外低；15mm

B.外低内高；10mm

C.外低内高；15mm

D.内高外低；10mm