你玩过“竹蜻蜓”(如图)的玩具吗?用手搓动它的杆部,它就能腾空而起。请你在图中画出竹蜻蜓在旋转加速上升时竖直方向上的受力示意图。
—I have got a sore throat.
—______. [ ]
A. Be careful
B. It doesn't matter
C. I'm sorry to hear that
D. Nothing serious
脏腑功能失常可导致妇科疾病,关系最密切的是()
A.肾、肝、脾
B.肾、脾、心
C.肝、脾、胃
D.肝、脾、心
E.肾、脾、肺