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【判断题】
托马斯·库克是近代旅游业的先驱者。( )A.
正确
B.
错误
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举一反三
【单选题】Emails are often shorter than letters, and often use abbreviations. How could you write ''I received the information you sent me'' in an email?
A.
I got the information you sent me.
B.
Thanks for the information.
【简答题】Passage 1 Nowadays, more and more students are using emails to communicate. Several reasons why email has become a great tool are that it is fast, ________(1), and affordable. In the past, students of...
【简答题】SectionD大家打开爱听外语sectionD部分,做passage1到passage5 Passage1 Nowadays, more and more students are using emails to communicate. Several reasons why email has become a great tool are that it is fast, 1——, and...
【简答题】模具的（）就是冲压力的作用点，求（）的方法就是求空间平行力系的合力作用点。
【简答题】弯杆受载荷如图所示．求：(1)这些载荷合力的大小和方向；(2)合力作用点在AB线上的位置；(3)合力作用点在BC线上的位置．
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