题目

— All of us are ____ what will happen when we heard the bad news about Hongkong.—Take it easy. The government has taken actions.A.proud of B.angry with C.worried about D.surprised at 答案:【答案】C【解析】句意:——当听到香港的坏消息后,我们都很担心将会发生什么。——不用紧张,政府已经采取行动了。考查形容词词组辨析。A. proud of以……自豪;B. angry with生气;C. worried about担心;D. surprised at惊讶。根据when we heard the bad news和Take it easy.可知,此处是我们担心接下来会发生的事情有一圆与直线l:4x-3y+6=0相切于点A(3,6),且经过点B(5,2),求此圆的方程.
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