3. It is expected that through the study the nation’s health care costs
A.
will be lowered in the long run.
B.
will be significantly increased.
C.
will be more than $200 million.
D.
will reach $3.2 billion.
4. The babies of the participants will be followed
A.
throughout their lives.
B.
for more than two decades.
C.
form birth to 21 months.
D.
until they get married.
5.Which is NOT true of the people in the study?
A.
They’ll be from various areas.
B.
They’ll be from all income levels.
C.
They’ll be from all educational levels.
D.
They’ll be from all age groups.
答案：1.C 2.D 3.A 4.B 5.D