Believeitornot,weatherforecastssev

发布时间：2020-07-09 11:52:38

Believe it or not, weather forecasts seven days in advance are, ________, wrong half the time, according to a US survey．













A.at first












B.in brief











C.on average











D.by chance

网友回答

C解析语境中考查固定习语的运用。句意：信不信由你，根据美国的一项调查，提前七天的气象预报平均半数时间有误。
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