心电图反映两心室除极过程的波为
A.P波B.QRS波C.T波D.U波E.ST段
参考答案:B
Many people think it necessary for people who are out of work ______so that they can acquire one
or more basic skills for survival in modern society. [ ]
A. be reeducated
B. being reeducated
C. to be reeducated
D. reeducated