题干
—Do you have any idea what Paul does all day?
—As I know,he spends at least as much time playing as he______.
—As I know,he spends at least as much time playing as he______.
A：write
B：does writing
C：is writing
D：does write
答案(点此获取答案解析）
B
中，角
、
、
的对边分别为
、
、
，若
，则