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【单选题】
如图是一斜坡的横截面,某人沿斜坡从M出发,走了13米到达N处,此时在铅垂方向上上升了5米,那么该斜坡的坡度是( )A.
1:5
B.
12:13
C.
5:13
D.
5:12
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【单选题】听力原文：W: Sam,you look pale as if you sat up late last night. M: Actually I went to bed earlier than usual.I am tired because I gave in to my son's earnest request and took him to the zoo yesterday. Q: ...
A.
He stayed up too late last night.
B.
He went to bed too early last night.
C.
He went to the zoo with his son yesterday.
D.
He worked overtime yesterday.
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