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【多选题】
关于旅游者的叙述,正确的有:A.
旅游者首先必须是一个旅行者
B.
旅游者的产生有赖于社会经济的发展
C.
旅游者要求有比较宽松的旅游政策，以充分行使个人的旅游权利
D.
旅游者按旅游目的可分为观光旅游者、度假旅游者和公务旅游者
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皮皮学刷刷变学霸
举一反三
【单选题】The class remained ____ when the teacher asked a formidable question.
A.
clumsy
B.
deaf
C.
dumb
D.
still
【单选题】The teacher asked a very difficult question. It was Ted who finally ____ a good answer. [ ]
A.
came up with
B.
kept up with
C.
went through with
D.
put up with
【单选题】The teacher asked a difficult question, but Tom finally managed to___________a good answer.
A.
put up with
B.
keep up with
C.
come up with
D.
go through with
【单选题】The teacher asked a difficult question, but finally Ted _____ a good answer.
A.
came up with
B.
put up with
C.
caught up with
D.
kept up with
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