养鱼场去年放养鱼苗896尾,今年放养的鱼苗数比去年的2倍少329尾.今年放养多少尾?
896×2-329,
=1792-329,
=1463(尾),
答:今年放养1463尾.
四川汶川地震发生以来,截止2009年6月4日12时,已接受国内外社会各界捐款436.81亿元,用科学记数法(保留三个有效数字)记为( )
A.4.36×1010
B.4.37×1010
C.43.7×109
D.4.37×109
While we were running on the playground, Jack suddenly stopped____ and lay on the ground,so we all stopped_____ what was wrong with him.
A.to run; to see
B.running; seeing
C.running; to see
D.running; see