细胞衰老是一种正常的生命现象。人的细胞在衰老过程中不会出现的变化是[ ]
A.细胞内有些酶活性降低
B.细胞内色素减少
C.细胞内水分减少
D.细胞内呼吸速度减慢
答案:B
用所给动词的适当形式填空。
1. He is _______ (point) at the little red school.
2. Are you________(have) fun?
3. Jenny is not ___________(look) out the window.
4. I _______ (see)a little pink pig.
5. What _______(do) she see?
麻疹持续高热可用()
A.冰敷
B.少量退热剂
C.醇浴
D.温水擦浴
E.氢化可的松