同学们订做校服,上装用布0.9米,裤子用布0.8米,现有200米布,最多可做多少套?
200÷(0.9+0.8),
=200÷1.7,
≈117(套);
答:最多可做117套.
I's ________ of Bob to do a disappearing act just when there's work to be done!
A.ordinary
B.common
C.normal
D.typical
经济合同对当事人有特定要求。