细胞膜组成中,分子数最多的是
A.糖类B.脂质C.蛋白质D.糖脂E.胆固醇
参考答案:B
It is only when the disease has progressed to the AIDS ____ a person begins to look sick.
A.which
B.what
C.who
D.that
耳的检查应注意
A.外耳道分泌物
B.乳突压痛
C.耳郭缺损及听力情况
D.邻近部位的炎症
E.邻近部位的畸形