《素问·上古天真论》“阳明脉衰，面始焦”是女子哪个阶段的生理特点（）。
A.三七
B.四七
C.五七
D.六七
E.七七
参考答案：C
曲线y=x3+x-10在某点处的切线平行于直线4x-y+3=0，则切线方程为______．
—Where is Mike? He asked me to go out for a walk this evening.
—Maybe he _____ TV in the living room. [ ]
A. watched
B. will watch
C. is watching
