1取50.0cm30.100mol·dm-3某一元弱酸溶液，与20.0cm3、0.100mol·dm-3KOH溶液混合，将混合溶液稀释至100cm3，测得此溶液的pH值为5.25。求此一元弱酸的解离常数。
查看答案
How do some people react to womens appropriation of mens language forms as reported in the
A. They call for a campaign to stop the defeminization.
B. They see it as an expression of womens sentiment.
C. They accept it as a modem trend.
D. They express strong disapproval.
回答下列各题： 药品零售药店对处方药和非处方药应采用
A. 分拒摆放销售方式
B. 有奖销售方式
C. 开架自选销售方式
D. 附赠药品销售方式
E. 凭执业医师处方销售方式
What do we learn from the last paragraph？
Animals changes are developed by themselves.
B. Human bred animals for specific genes.
C. Evolutionary influence works on both humans and animals.
D. Genes could make the dogs help people in hunting.
微信支付 
支付宝支付