— The cars made in Germany are more expensive than ________ made in Japan.
— Yes, I can't agree more. But they're much better.
A:it
B:that
C:those
D:ones
右图是一块正方形的园地,中间有一正方形的花坛,周围是草坪。算出草坪的面积是多少平方米? (单位:米)
如图一个弯形管道ABCD的拐角∠ABC=120°,∠BCD=60°,这时说管道AB∥CD,是根据____
1 L某混合溶液中,溶质X、Y浓度都为0.1mol·L-1,向混合溶液中滴加0.1 mol·L-1某溶液Z,所得沉淀的物质的量如图所示,则X、Y、Z分别是( )