制取牙列缺失印模,以下叙述哪项是错误的( )
A.使组织受压均匀B.适当伸展印模范围C.采取解剖式印模D.保持稳定的位置E.作肌功能修整
参考答案:C
I_________for an English test when she came in at this time of yesterday.
A.studied
B.am studying
C.was studying
D.study
下列选项中,( )是可以立即见效的一种开拓房源的渠道。
A.路牌广告 B.派发DM宣传单C.电话访问 D.互联网