2道CONCLUSIO的逻辑题~

alonegreen86

1.recent estimates predict that between 1982 and 1995 the greatest increase in the number of people emplyed will be in the category of low-paying service occupations. this category,however,will not increase its share of total employment, whereas the category of high-paying service occupations will increase its share.
of the estimates above are accurate, which of the following conclusions can be drawn?

a. in 1982 more people were working in low-paying service occupations than were working in high-paying service occupations.

b.in 1995 more people will be working in high-paying service occupations than will be working in low-paying service occupations.

c.nonservice occupations will account for the same share of total emplyoment in 1995 as in 1982.

d.many of the people who were working in low-paying service occupations in 1982 will be working in high-paying service occupations by 1995

e.the rate of growth for low-paying service occupations will be greater than the overall rate of employment growth between 1982 and 1995.

答案是a,我选的C


2.all actors are exuberant people and all exuberant people are extroverts,but nevertheless it is true that some shy people are actors.
if the statements above are true, each of the following must also be true except:

a.some shy people are extroverts.
b.some shy extroverts are not actors.
c.some exuberant people who are actors are shy.
d.all people who are not extroverts are not actors.
e.sme extroverts are shy

答案是b，我选的a

alonegreen86

自己顶个