【題目】Computers can work than they did five years ago.

A. fastB. fasterC. fastestD. the fastest

【答案】B

【解析】

句意:電腦比起五年前工作地更快了。fast快地 ,fasterfast的比較級,fastestfast的最高級。兩者比較用比較級,該句中指現(xiàn)在的電腦和五年前的電腦進行比較,故選B。

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