【单选题】— ____ is his favourite ____? — Green. [ ]
【单选题】—________ is that bird? —It's black. [ ]
【单选题】—_____ is the apple? —It's red. [ ]
【单选题】— ________________ — It's white. [ ]
【单选题】( ) 3. A. What colour is it? B. What colour are they?
【单选题】( ) ——— ______ is your skirt? ——— It's red . A. What B. What colour C. What's colour
【判断题】如果某商品的需求价格弹性较高,利用成本加成定价法制定价格时,最适加成率就应相对较低。
【单选题】下列关于滴虫阴道炎的叙述,错误的是( )