某项发盘于4月15日以电报形式送达受盘人，但在此前的13日，发盘人以传真告知受盘人，发盘无效，此行为属于发盘的撤回。( )
查看答案
What is the probable relation between the two speakers
A math teacher and his colleague.
B. A teacher and his student.
C. A librarian and a student.
D. A student and his classmat
电视机的寿命试验适合全数检验。( )
A. 对
B. 错
Whose wallet was lost
A. Wang Jun’s
B. Liu Feng’s
C. Li Hong’s
D. Zhang Jun’s
Questions 11--13 are based on the following passage. In Nick’s opinion, why didn’t his relatives meet him at the airport
A. They missed the flight.
B. They were busy.
C. Their car broke down.
D. They were caught in the traffi
微信支付 
支付宝支付