维持细胞外液渗透压的重要离子是( )。
A.K+B.Na+C.Mg2+D.H+E.Ca2+
参考答案:B
解析:[知识点] 体液的平衡及调节
Michelle found a job as a high school teacher which _____ spending quite a lot of time with students.
A.enjoys
B.involves
C.practices
D.suggests
Here my photos.
A.is
B.am
C./
D.are