FOCKE408条盒透明纸包装机拉线卷轴机械式刹车不需要进行清洁保养。
参考答案：错
-- Mum，can I go on a holiday with my classmates this summer vacation?
-- OK．You __________ have a chance if you get along well with your studies．
A．could
B．shall
C．might
D．must
加快电网事故处理，允许自同期并列的发电机、调相机尽可能采取自同期并列。采取准同期并列时，允许电压差10%.
