技术方案经济效果评价的基本内容，包括（）。A.盈利能力 B.偿债能力 C.财务生存能

如果5个人站成一排，甲必须站在排头或排尾，乙不能站在排头或排尾，不同的站法有（   ）种。

A．18

B．36

C．48

D．60

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%

. John's success has nothing to do with good luck. It is years of hard work __________has made him what he is today.

A．why

B．when

C．which

D．that

可出现认知功能受损、谵妄、跌倒的是（）

A.华法林

B.地西泮

C.普萘洛尔

D.甲氧氯普胺

E.速释硝苯地平

液压支架承载过程分（）阶段。

A.初撑增阻

B.承载增阻

C.顶梁承载

D.恒阻