题干
——Look! What's on the ground? —— Oh, it's my sweater. Please .
A：pick it up
B：put it on
C：give it out
D：take it off
答案(点此获取答案解析）
A
——Look! What's on the ground? —— Oh, it's my sweater. Please .
A：pick it up
B：put it on
C：give it out
D：take it off
ABCD，∠A=45°，AD=4，以AD为直径的半圆O与
