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[Sentence Correction]
试题详情
题目：
The use of the bar code, or Universal Product Code, which was created in part to enable supermarkets to process customers at a faster rate, has expanded beyond supermarkets to other retail outlets and have become readily accepted despite some initial opposition when it was first introduced in 1974.
选项:
A、have become readily accepted despite some initial opposition when it was first introduced in 1974
B、has become readily accepted despite some initial opposition when they were first introduced in 1974
C、have become readily accepted despite some initial opposition when first introduced in 1974
D、has become readily accepted despite some initial opposition when the bar code was first introduced in 1974
E、bar codes have become readily accepted despite some initial opposition when it was first introduced in 1974
答案:
D
提问：
错选B。 不知道为什么B不可以
解答：
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提问：
请问Tina老师(只需要解答下面问题就可以了，与上面的题目无关)
Students at Carver High School are encouraged to pursue only those extracurricular activities from which (stems success in college applications.)
这里的stems是否应为stem？因为修饰的是activities.谢谢！
解答：
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提问：
错选B。 不知道为什么B不可以
解答：
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