某居民搬进新装修的房屋居住后,家庭成员常出现流泪、胸闷,最可能原因是
A.CO2浓度过高
B.CO浓度过高
C.空调的影响
D.颗粒物超标
E.甲醛的影响
参考答案:E
磁粉磁芯
You’ll succeed _____because you are always working hard.
A.on time
B.in time
C.at times
D.at the time