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【判断题】
无人直升机发展最早,由于直升机构型悬停性能好,飞行速度较快,载重量也较大等优点,一直以来有着良好的发展。A.
正确
B.
错误
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举一反三
【简答题】How is a booth decorated successfully?
【单选题】How has the system for renting space changed?
A.
Exhibitors must pay for the booth in full prior to April 9.
B.
The rental fees have been reduced.
C.
Cancellation fees are listed on the registration form.
D.
The payments must be made at the time of registration.
【多选题】How many types of booth do we usually have ?
A.
Standard booth
B.
Peninsula booth
C.
Island booth
D.
Linear booth
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