特异性投射系统的主要功能是
A. 维持大脑皮层的兴奋状态
B. 维持觉醒
C. 协调肌紧张
D. 引起特定感觉
E. 维持姿势
与体表痛相比较,内脏痛的特点有
A. 表现为一种刺痛
B. 定位不准确,持续时间较长
C. 必伴有牵涉痛
D. 对牵拉、缺血、痉挛、炎症等不敏感
E. 对切割、烧灼很敏感
When you come to college, you can have ____________.
A. more freedom
B. more classes
C. more money
D. more homework
As for the methods to handle your time in college, which is not suggested in the video?
A. Limit your number of slipping from class
B. Set your own study schedules
C. Set your own sleep schedules
D. Go out to play every night
微信支付 
支付宝支付