红细胞的形态为 [ ] A.两面凸的圆饼状 B.球形 C.不规则形状 D. 发布时间:2017-07-17 15:07 │ 来源:www.tikuol.com 题型:选择题 问题: 红细胞的形态为 [ ]A.两面凸的圆饼状 B.球形 C.不规则形状 D.两面凹的圆饼状
题型:选择题 For miles around me there was nothing but a desert, without a single plant or tree ______.A.on earthB.in sightC.at a distanceD.in place 查看答案