The weight of a male lion can reach 240 kg, _____ an adult man.[]
A：three times the weight of
B：the three times weight of
C：as heavy as three times
D：as three times heavy as
—Do you know girl who is standing under tree?
—Of course! She is Lucy, my classmate.
①计划生育 ②科教兴国 ③对外开放 ④保护环境
