匙状指见于()
A.佝偻病
B.类风湿关节炎
C.缺铁性贫血
D.先天性心脏病
E.再生障碍性贫血
参考答案:C
商品最本质的因素是使用价值。( )
248. A group of the red scarves are playing on the seaside_______.
A.sand
B.sands
C.sail
D.Salts