【多选题】(多选)在湿空气比体积的单位中有个m3,还有个kg,( )
【单选题】Why does Amina feel more confident when she speaks Chinese these days?
A.
Because she makes an effort to speak to Chinese friends in their language.
B.
Amina has a positive attitude towards learning languages.
C.
She can speak more fluently than before, and this makes her more confident.
【判断题】湿空气的比容是指单位质量的绝干空气所具有的湿空气的体积
【简答题】湿空气的比体积是指:________________________________________。
【多选题】在湿空气比体积的单位中有个m3,还有个kg,( )
【单选题】相对湿度是指单位体积空气内实际含有的水气量与同一温度下饱和水气之比,即一定温度条件下绝对湿度占饱和湿度的()。
【简答题】天然气的相对湿度是指单位体积天然气含水量与相同条件下(温度、压力)饱和状态空气_______的比值。
【判断题】主张精英治国论的《理想国》是柏拉图的代表作。()
【单选题】She speaks in low ___.
【单选题】She speaks as though she ______ on the spot.