指考詞彙考古題

全民英檢 | 指定科目考試 | 學科能力測驗 | 國中英語基測

參考詞彙 初級中級中高級

If you want to keep your computer from being attacked by new viruses, you need to constantly renew and _____ your anti-virus software.

(A) overlook
(B) confirm
(C) esteem
(D) update