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The Internet is really ______ to us. We can easily find the information we need.
A.safeB.hardC.boring D.useful
D
形容词辨析。safe意为“安全的”,hard意为“难的”,boring意为“无聊的”,useful意为“有用的”。由句意“因特网真的对我们有用,我们可以很容易地找到我们所需要的信息”可知,只有useful符合句意。故选D。
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