I draw a picture _____________ my story. [ ]
A. to
B. for
C. is
答案:B
.Friends are like leaves, __________everywhere, but true friends are like diamonds, precious and rare.
A.to find
B.finding
C.being found
D.found
对VVIRV起搏器编码描述正确的是()
A.心室抑制型起搏,有频率应答,无多部位心室起搏
B.心室抑制型起搏,无频率应答,有多部位心室起搏
C.心室抑制型起搏,无频率应答和多部位心室起搏
D.心室抑制型起搏,有频率应答和多部位心室起搏
E.心房抑制型起搏,无频率应答和多部位心室起搏