The purpose of new technologies is to make life easier, ­________ it more difficult.
A．not makeB．not to makeC．not makingD．don’t make
B
考查不定式作表語。句意：新技術(shù)的目的是使生活更容易，不是使生活更難。根據(jù)語義后面的結(jié)構(gòu)應(yīng)與to make life easier結(jié)構(gòu)一樣，否定式應(yīng)在to前面加not,故選B。
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