—A microwave oven must be a big convenience to a busy couple. —___________ dear.But when do you plan to get it? A.Just can’t agree more B.A pleasure C.Good idea D.No wonder 答案:A 解析: can’t/couldn’t agree (with sb.) more.与某人意见完全一致。It’s a pleasure for sb.to do sth.对某人来说是件乐意的事情。Good idea的意思是“好主意”。No wonder的意思是“也难怪”根据题意应选A。下面是关于复数z=的四个命题P1:=2 p2:=2i P3:z的共轭复数为1+i P4:z的虚部为-1其中真命题为( )A.P2 ,P3B.P1 ,P2C.P2,P4D.P3 , P4