Conversation 3[音频]
A. $45.
B. $50.
C. $55.
D. $60.
Conversation 4[音频]
A. She is too intimidated to speak in front of others.
B. She is not very confident in her own figure.
C. She has started doing exercise at home.
D. She is waiting for a class to start now.
Conversation 5[音频]
A. She is good at planning weekend activities.
B. She has never been on a camping trip before.
C. She cannot save herself if she falls into water.
D. She has more interest in canoeing than in camping.
海运中有“无船承运人”，陆运有“无车承运人”，如果空运有“无机承运人”，那么无机承运人的概念更接近
A. 航空运输销售代理
B. 航空货运代理
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