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问题
判断题
导游服务群体三成员是旅游服务各方面关系的协调者,和旅游过程中各种问题的处理者。( )
答案
参考答案:
对
选择题
The teacher, with 6 girls and 8 boys of her class, _____ visiting a museum when the earthquake struck.
A. was
B. were
C. had been
D. would be
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单项选择题
拉伸试验时,试样拉断前能承受的最大应力称为材料的()。
A、屈服点
B、抗拉强度
C、弹性极限
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