第2部分：阅读判断(第16——22题，每题1分，共7分)

下面的短文后列出了7个句子，请根据短文的内容对每个句子做出判断;如果该句提供的是正确信息，请选择A;如果该句提供的是错误信息，请选择B;如果该句的信息文中没有提及，请选择C。

Multivitamins Urged for All Pregnant Women

A recent study in Tanzania found that whenpregnant women took vitamins everyday, fewer babies were born too small.Babies that weigh less than two andone-half kilograms at birth have a greaterrisk of dying. Those that survive aremore likely to experience problems with theirdevelopment. And experts say thatas adults they have a higher risk of diseasesincluding heart disease anddiabetes. The World Health Organization estimatesthat every year twenty millionbabies are born with low birth weight. Nine outof ten of them are born indeveloping countries.

The new study took place in Dar es Salaam.4,200 pregnant women receivedmultivitamins. The pills contained all of thevitamins in the B group along withvitamins C and E. They also containedseveral times more iron and folate than thelevels advised for women indeveloped nations. Pregnant women especially in poorcountries may find itdifficult to get enough vitamins and minerals from thefoods in their diet.

The scientists compared the findings withresults from a group of 4,000 womenwho did not receive the vitamins. A reportby the scientists, from the UnitedStates and Tanzania, appeared in the New England Journal of Medicine.WafaieFawzi of the Harvard University School of Public Health led the study.None ofthe women in the study had HIV, the virus that causes AIDS. Thescientistsreported earlier that daily multivitamins were a low-cost way toreduce fetaldeaths in pregnant women infected with HIV. The earlier work inTanzania alsofound improvement in the mothers in their number of blood cellsknown aslymphocytes. Lymphocytes increase the body’s immunity againstinfection.

The new study in pregnant women who werenot infected with the AIDS virusfound that multivitamins reduced the risk oflow birth weight. Just under eightpercent of the babies born to women who tookthe multivitamins weighed less than2,500 grams. The rate was almost nine andone-half percent in the group of womenwho received a placebo, an inactivepill, instead of the vitamins. But thevitamins did not do much to reduce therates of babies being born too early ordying while still a fetus. Still, theresearchers say multivitamins should beconsidered for all pregnant women indeveloping countries.

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