单项选择题
A.黄瓜 B.黄豆 C.大米 D.西红柿
A.10cm B.12cm C.14cm D.16cm
A.20% B.40% C.50% D.70%
A.12%～15% B.20%～30% C.50%～60% D.60%～70%
微信扫一扫,加关注免费搜题
