—How many Chinese players(运动员)were there in the 2012 London Olympics(奥运会)?
—About ________.
A:three hundred
B:three hundreds
C:three hundred of
D:three hundreds of
我国的税收取之于民,用之于民。( )
(2015•常德)图是A、B、C三种固体物质的溶解度曲线,请回答下列问题:
(1)溶解度受温度影响最小的是____ (填“A”或“B”);
(2)T1℃时C的溶解度为____ g;
(3)T2℃时,A、B、C的溶解度由大到小的顺序是____ ;
(4)T2℃时将40gA物质加入50g水中充分溶解后,所得溶液是____ 溶液(填“饱和”或“不饱和”).