下列各种仪器:①漏斗;②容量瓶;③分液漏斗;④天平;⑤蒸馏烧瓶.常用于物质分离的是( )
A:①②③
B:②④⑤
C:①③⑤
D:②③④
— How did you get there?
— I got there________, because it is only 1.5 kilometers.
一束光线斜射到水面发生反射和折射,请在图中画出它的反射光线和大致的折射光线.