【简答题】Studies show farmland in Africa is often lacking in important nutrients. But researchers say combining different farming methods may help. Since the world food cr several years ago, researchers ha...
【单选题】Napping to a Healthier Heart? Researchers say they have developed a.simple test that can tell if a person with]heart disease is likely to suffer a heart attack.The test measures levels of a protein in...
A.
Effects of napping in females still uncertain
B.
Older males have higher levels of NT—proBNP
C.
Development of a simple but important test
D.
Evidence of positive relationship between napping and heall disease