胶砂试体脱模后,将做好标记的试件立即水平或竖直放在()水中养护,水平放置时刮平面应()。
参考答案:20℃±1℃;朝上
甲、乙、丙三人各拿出同样多的钱合买一种英语本,买回后甲和乙都比丙多要6本,因此,甲、乙分别给丙1.5元钱,每本英语本______元.
Liu Xiang trained hard before the Asian Games in Guangzhou, and it ______. He won the gold medal in 110 meters’ hurdles.
A.worked out
B.paid off
C.marked out
D.got through