下列哪种情况时血K+浓度可能升高
A．碱中毒
B．酸中毒
C．醛固酮分泌增多
D．近球小管分泌H+减少
E．远曲小管和集合管分泌H+减少
参考答案：B
The nurse is teaching a female client with osteoporosis about her prescribed diet. Which of the following foods is the best source of calcium ？（）
A．1 cup of low-fat yogurt.
B．1 cup of skim milk.
C．1 oz of cheddar cheese.
D．1 cup of ice cream.
事故放水在什么时候自动开启？
