溶膠帶電可由 、 實(shí)驗(yàn)來證明



你可能感興趣的試題


單項(xiàng)選擇題

完形填空。 On April 19, we were told to leave school and stay at home because of a new dise

ase called完形填空。 On April 19, we were told to leave school and stay at home because of a new disease called SARS. We started an unusual holiday. It’s not very 1 for us to stay at home all day. I think going to school is much better than staying at home, although （） D. know D. sad D. few D. visited D. pen D. never D. Nobody D. check