【单选题】At a certain temperature,a saturated solution of Zn(OH)2has a pH of 8.30.The value of Ksp for Zn(OH)2at this temperature is
【简答题】内存的主要性能指标有:_______、_______、_______、_______、和_______。
【判断题】水在体内的交换取决于蛋白质和电解质浓度。
【单选题】Sheldon could have defeated Howard in the match, but he _______ too careless at the last minute.