2. 外语
  3. An extensive foundation in the basic sciences should be required of all science students, ______.

An extensive foundation in the basic sciences should be required of all science students, ______.

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问题 An extensive foundation in the basic sciences should be required of all science students, ______.
选项 A、whether they are future physicists or chemists
B、be they future physicists or chemists
C、they are future physicists or chemists
D、they should be future physicists or chemists
答案B
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