冲脉与下列经脉交会的是
A．任脉
B．督脉
C．足阳明胃经
D．足太阴肾经
E．手阳明大肠经
参考答案：A,B,C,D
—Could you help me write the annoying composition?
—No! As a student, you _____ do it by yourself.
A．shall
B．will
C．can
D．may
简述轴承的种类。
