原醛伴严重低血钾患者，在补钾后醛固酮的变化是（）
A.增多
B.降低
C.无变化
D.先增后降
E.先降后增
参考答案：A
港口布置有哪些类型？
— Why was our foreign expert unhappy yesterday?
— News about the earthquake in Japan _______ a feeling of homesickness. [ ]
A. set up
B. set out
C. set about
D. set off
