[单项选择]How long is the warranty of the computer
A. 2 months.
B. 1 year.
C. 2 years.

[单项选择]What changes does computer have How（）
A. It becomes smaller and works faster.
B. It becomes larger and works faster.
C. It works as larger and works slower.
D. It becomes smaller and works slower.

[填空题]How long has he been working as a computer engineer

[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]How long is one course

[单项选择]How long does the runs
A. Floor Eight and Nine
B. Floors Two, Three and Four of the annex
C. Floor Nine only

[单项选择]How long was Dilys late
A. Half an hour.
B. Twenty minutes.
C. One and a half hours.

[单项选择]

People have wondered for a long time how their personalities and behaviors are formed. It’s 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 question. 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 conveniently 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 factor. That our environment has little, if anything to do with our abilities, characterist
A. approaches
B. advocates
C. principles
D. characters