工业水处理采用的膜分离技术主要有（）等。
参考答案：电渗析、反渗透、超滤、微滤、钠滤
For retired 65-year-old investor, with moderate risk tolerance and adequate insurance and cash reserves, the appropriate portfolio will most likely have the following mix of bonds and stocks:
A．portfolio
B．bonds
C．stocks
D．A
E．55%～65%
F．35%～45%
G．B
H．30%～40%
I．60%～70%
J．C
K．15%～50%
L．50%～85%
下面参数中（）属于外环功控参数
A.外环功控算法类型
B.上行SIR目标值的初始值
C.OLPCUpdatePrd
D.DLInitSIR
