潮湿和肥皂对皮肤都是刺激物，可降低皮肤的抵抗力，因此作皮肤护理时应消除这些不利因素。
参考答案：对
"动极者镇之以静"所说明的阴阳关系是（）
A.阴阳相互转化
B.阴阳互根互用
C.阴阳相互消长
D.阴阳对立制约
E.阴阳动态平衡
A plane traveled k miles in the first 96 minutes of flight time. If it completed the remaining 300 miles of the trip in t minutes, what was its average speed, in miles per hour, for the entire trip ？（）
A.A
B.B
C.C
D.D
E.E
