The car is too expensive. He can't afford____ (pay) for it.
—We have a new friend today! —_________
盒子里面有9颗珠子。数一数,一共有____颗珠子。
5×5=( )
A.氯化钙﹣碱 B.碳酸钙﹣盐 C.钢筋﹣单质 D.聚氯乙烯﹣____.
与总体小康相比,全面的小康是( )