With the help of high technology, more and more new substanc试题答案_出自石家庄铁道大学系统石家庄铁道大学-大学英语3

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With the help of high technology, more and more new substances ______ in the past years. A、 discovered B、 have discovered C、 had been discovered D、 have been discovered
答案是:正确答案为：D 出自石家庄铁道大学-大学英语3 石家庄铁道大学系统石家庄铁道大学
更多试题>>>> 1、I told the foreign guests that it was in the house______ we used to live that the exhibition was held. A、 that B、 whic 2、Directions: For this part, you are allowed thirty minutes to write a composition on the topic The Internet. You should w 3、_____ a little earlier this morning! I missed the school bus by only one minute and had to wait in the cold for nearly a 4、Which do you think is ________, health or wealth？ A、 the best B、 the better C、 best D、 better 5、Pop music is such an important part of society ______ it has even influenced our language. A、 as B、 that C、 C. which

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