9. We must do our best to develop science and technology,it        in the national economy (part)

我們必須盡全力發(fā)展科技,它對(duì)國(guó)家的經(jīng)濟(jì)發(fā)展起著重要作用。

9. playing an important part題干中逗號(hào)表明其后不應(yīng)為一個(gè)簡(jiǎn)單句,而是一個(gè)獨(dú)立結(jié)構(gòu)。

題目來(lái)源:高考英語(yǔ)組合訓(xùn)練多項(xiàng)選擇+完成句子 > 組合訓(xùn)練19-20

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