[单项选择]Nobody yet knows how long and how seriously the shakiness in the financial system will ______ down the economy.


A. settle
B. knock
C. put
D. drag

[单项选择]Nobody yet knows how long and how seriously the shakiness in the financial system will ______ down the economy.


A. settle
B. knock
C. put
D. drag

[单项选择]Nobody yet knows how long and how seriously the ______ in the financial system will drag down the economy.
A. shallowness
B. shakiness
C. scantiness
D. stiffness

[单项选择]

Text 3
People have wondered for a long time how their personalities and behaviors are formed, h is not easy to explain why one person is intelligent and another is not, or why one is cooperative and another is competitive.
Social scientists are, of course, extremely interested in these types of questions. They want to explain why we possess certain characteristics and exhibit certain behaviors. There are no clear answers yet, but two distinct schools of thought on the matter have developed. As one might expect, the two approaches are very different from one another, and there is a great deal of debate between proponents of each theory. The controversy is often referred to as "nature/nurture".
Those who support the "nature" side of the conflict believe that our personalities and behavior patterns are largely determined by biological and genetic factors. That our environment has little, if anything, to do with our abilities, charac
A. supports the nature theory
B. supports the nurture theory
C. believes both are completely wrong
D. thinks that the correct explanation of human behavior will take ideas from both theories

[单项选择]Who most probably knows best how to describe people's personality


A. The ancient Greek audience.
B. The movie actors.
C. Psychologists.
D. The modem TV audience.

[单项选择]Such a skilled volleyball player knows how to take （　） of his opponent's weakness.
A. account
B. charge
C. advantage
D. command

[单项选择]Neither the manager （）the director knows how to solve the problem
A. and   
B. but
C. or    
D. nor