关于椎动脉型颈椎病的临床表现,错误的是()
A.头痛
B.眩晕
C.视觉障碍
D.猝到
E.颈肩痛
参考答案:E
The boy ____ under the tree ____ to his friend that his cock ____ eggs. [ ]
A. lied; lied; laying
B. lying; lying; laid
C. lying; lying; laying
D. lying; lied; laid
能表达流体在临界点的P-V等温线的正确趋势的virial方程,必须至少用到()
A.第三virial系数
B.第二virial系数
C.无穷项
D.只需要理想气体方程