0.9%NaCl溶液与血浆相同的是()
A.胶体渗透压
B.K+浓度
C.Na+浓度
D.总渗透压
参考答案:D
In ______________, fashions changed and many factories closed down.
A.1830’s
B.1830s
C.the 1830s
D.the 1830s’
下列各项权利中,()是用益物权。
A,抵押权
B.质权
C.留置权
D.土地承包经营权