题目

His aunt wants to get him _______ the radio, but he has had it _______ already. A. repair, repair  B. to repair, repair   C. repaired, to repair         D. to repair, repaired 答案：D下表为身边常见物质的pH．据此判断下列说法中正确的 [     ]A．蚊虫叮咬后，可涂稀氨水减轻疼痛 B．胃酸过多的病人应多食橘子、苹果C．牙膏的碱性比草木灰的碱性更强 D．刨芋头时，皮肤沾上芋头皮会奇痒难忍（芋皮上含有一种碱性的物质﹣﹣皂角素），可选肥皂水涂抹止痒