Na2CO3 质子条件式为 [HCO3-]+[H+]+[H2CO3] = [OH-] ( )
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NH4HCO3 质子条件式为 [H+]+[H2CO3] = [NH3]+[CO32-]+[OH-] ()
A. 对
B. 错
It sounds ______. Many children of his age don’t even know if a number is odd or even.
A. good
B. odd
C. exciting
D. satisfying
The “Wolf Principle” has been advocated by many famous companies inChina, such as Baidu, Huawei and so on. What is “Wolf Principle”?
A. Survival of the Fittes
B. Nature Law
C. Harmony between Man and Nature
D. Living in Groups
临床治疗急慢性鼻炎、鼻窦炎、鼻出血的药物是()
A. 麻黄碱滴鼻液
B. 复方碘甘油
C. 林可霉素滴耳液
D. 复方安息香酊