题目

完形填空Dear Seth, You are only three years old, and at this point in your life you are not able to understand this letter. But some day when you1 , I hope you will find something 2in what I am going to tell you. Life can be3. There will be people in your life who won't be very nice. They'll4 you because you are different, 5for no good reason. You will also face heartbreak and might be6by those you love. I hope you don't have to face these too much, but such things7. Be open to life anyway. You'll find cruelty and8in your journey through life, but don't let that 9you back from finding new 下列各组离子在指定溶液中一定能大量共存的是（　　） A、发生析氢腐蚀的溶液中：Na+、Ba2+、AlO2-、Cl-B、c（H+）/c（OH-）=1012的溶液中：NH4+、Al3+、SO42-、Cl-C、在pH=1的溶液中：NH4+、K+、NO3-、Fe2+D、由水电离的c（H+）=1×10-14mol?L-1的溶液中：Ca2+、K+、Cl-、HCO3-