学校用708元买了6把椅子和3张桌子,每把椅子58元,每张桌子多少元?
(708-58×6)÷3
=(708-348)÷3,
=360÷3,
=120(元).
答:每张桌子120元.
—Could I have a word with you,mum?
—Oh,dear,if you ________.
A.can
B.must
C.may
D.should
以下对预防农药中毒说法正确的是()
A.预防农药中毒只要注意安全运输即可
B.预防农药中毒只要加强生产时安全保护即可
C.预防农药中毒要加强各环节的中毒安全防护
D.预防农药中毒只要加强药物保管即可。