问题
判断题
蓄电池充电时电液放出含氢的气体，易点燃爆炸。故充电过程中严禁火花或明火接近。
答案
参考答案：对
搜题请搜索小程序“爱下问搜题”
蓄电池充电时电液放出含氢的气体，易点燃爆炸。故充电过程中严禁火花或明火接近。
参考答案：对
Ann is a middle school student. She has a sister 1 a brother. They are Helen and Paul. Ann and Helen can 2 . Ann can sing and play 3 well, but Helen 4 . Helen doesn’t like playing the instruments（乐器）. She 5 chess, but she doesn’t play chess 6 Ann. Ann can’t play chess. Helen often plays with Paul, because Paul plays 7 very well. Paul can 8 play basketball well. And he is 9 the school basketball club. He often 10 other students with basketball.
|
