题目

1t’s suggested by the hotel management that radios______after 10 O'clock     at night. A.were not played  B.not to play   C.not be played      D.did not play   答案:C不解方程,判断方程16x2+9=24x的根的情况是(  )A.有两个不相等的实数根B.有两个相等的实数根C.没有实数根D.有一个根为1
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