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【简答题】
根据你对元素、分子、原子、物理变化和化学变化这5个概念的理解，写一篇小短文，简要描述一下水的组成、结构及所发生的物理变化和化学变化．要求：条理清楚、层次分明，字数在150字以内． ______
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【单选题】The colleges that are not attached to universities may provide undergraduate or graduate programs.
A.
Y
B.
N
C.
NG
【简答题】This is generally true of American schools, especially at the undergraduate level. _____________________________________________________________________________
【简答题】Ваня и Юра хорошие друзья , вечером они вместе ________ в читальном зале. А. изучают В. учат С. учатся D. занимаются 22. Сегодня утром, когда я пришёл в школу, на площадке никого _______. А. не...
【单选题】Undergraduate students have no ________ to the rare books in the school library.
A.
access
B.
entrance
C.
way
D.
path
【简答题】A．The graduate students could understand the lecture. B．The undergraduate students could understand the lecture. C．Both the undergraduate and the graduate students understand the lecture. D．Neither th...
【简答题】You are supposed to write for the undergraduate association a notice to recruit volunteers for the local history museum. You should conclude the bask qualification of application and the other informa...
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