组成鼻腔后2/3假复层纤毛柱状上皮的细胞有()
A.纤毛细胞
B.柱状细胞
C.嗅细胞
D.杯状细胞
E.基底细胞
参考答案:A, B, D, E
As we all know , reading is to the mind______ food is to the body.
A.that
B.what
C.as
D.where
具有“剑脊”和背鳞行数成双性状特征的药材是()
A.乌梢蛇
B.滑鼠蛇
C.金钱白花蛇
D.王锦蛇
E.蕲蛇