【单选题】He told me to ________, for he wanted to stay for a while all by himself.
【单选题】He decided ______ on Tuesday.
【单选题】虚拟语气 ____today, he would get there by Friday A. Were he to leave B. If he had left C. Did he to leave D. Had he left
【单选题】(2018· 山西百校联考四 ) 一些常见食物的近似 pH 如下,显碱性 的是 ( ) 食物 葡萄汁 苹果汁 鸡蛋清 牛奶 pH 3.5 ~ 4.5 2.9 ~ 3.3 7.6 ~ 8.0 6.3 ~ 6.6 A. 葡萄汁 B .苹果汁 C .鸡蛋清 D .牛奶
【单选题】口腔有绿脓杆菌感染的病人应选用的漱口液是:( )
【简答题】胃肠激素的主要生理作用有______________、___________和______________。