皮皮学，免费搜题
登录
搜题
【单选题】
The author hopes to have the current situation in sports improved by ______.A.
calling on players to use clean language on the court
B.
raising the referee's sense of responsibility
C.
changing the attitude of players on the sports field
D.
regulating the relationship between players and referees
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】青苹果汁遇碘溶液显蓝色,熟苹果能还原银氨溶液。这说明( )
A.
青苹果中只含淀粉不含糖类
B.
熟苹果中只含糖类不含淀粉
C.
苹果成熟时淀粉水解为单糖
D.
苹果成熟时单糖聚合成淀粉
【简答题】山西菜也称晋菜，它由运城菜、临汾菜、五台菜、（）组成。