帕金森病的最常见首发症状是
A.静止性震颤
B.肌强直
C.运动迟缓
D.姿势步态异常
E.眼睑痉挛
参考答案:A
一棵春笋从出土到成长,每天长高一倍,6天长到32厘米。当长到8厘米时,经过了多少天?(提示:可以用倒推法。)
—I have ________ high temperature and ________ sore throat.
—Well, you may have the flu.[ ]
A. a; a
B. the; the
C. the; a
D. a; the