【单选题】听力原文:(A) The beds have been made. (B) The curtain is blocking the window. (C) There is a picture hanging above each bed. (D) There is a lamp between two beds.
【判断题】从混合气体分压定律知道,i组分的分压为pi时,则存在According to the law of partial pressure of mixed gas, if the partial pressure of component I is PI, then there is piV = niRMT (RM ——通用气体常数universal gas constant...