在手机维修过程当中,红绿灯交替闪表示来电,出服务范围绿灯闪,服务范围內红灯闪。()
参考答案:错
1、3、5、7月是大月.______.(判断对错)
. He has left his book here on _____, so that you can read it.
A.purpose
B.intention
C.aim
D.meaning