无线射频识别技术的英文缩写为( )。
A.PTL
B.RF
C.RFID
D.EAS
参考答案:C
My best friend sits next to ________. [ ]
A. his
B. he
C. I
D. me
—Lucy has never been to Qingdao, has she?
—________. She hopes to go there one day. [ ]
A. Yes, she has
B. No, she hasn't
C. Yes, she hasn't
D. No, she has