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第1题

公路桥梁设计的作用可归纳为永久作用、可变作用和( )三类。
·车辆作用
·人群作用
·偶然作用
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第2题

The topic sentence of paragraph 2 is __________.
·Sports and games are also very useful for character-training
·Th
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第3题

–How about your journey iTibet – _________________
·It’s very so-so.
·I’m very tired.
·Thanks for asking.
·I
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第4题

Adult educatiohas become popular _______. ( )
·because many old people are changing their professions
·because som
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