因为抄袭作业我向老师道歉。
I applogized to my teacher for my copying the homework.
applogize to 向.. 道歉
______ over and over again, but he still couldn’t understand.
A.Having explained
B.Having been explained
C.Explaining
D.It had been explained
阵发性室性心动过速绝大多数发生于( )
A.有严重心肌损害的患者
B.代谢性酸中毒
C.风湿热患者
D.病因不明
E.正常人