Then the fourth paragraph tells us how Fermi solved the problem of earth's circ-u
A.Right
B.Wrong
C.Not mentioned
A.Right
B.Wrong
C.Not mentioned
2. The Untied Nations Children's Fund, UNICEF, list four ways to improve children's health. The first way is to use a mixture of sugar, salt and water to treat diarrhea (腹泻). The second way is to use vaccines(疫苗)to protect children against common diseases. The third way is to feed babies mother's milk. And the fourth way is to measure carefully children's growth rates.
3. Diarrhea is the major cause of death among children in developing countries. Diarrhea results when the body tries to clear itself of harmful bacteria. The body does this by forcing fluids out, sometimes uncontrollably, from the bowels(肠). If too much water, sugar and salt are lost in this way, the kidneys(肾)and heart cannot work normally, The child may die.
4. UNICEF's diarrhea treatment is called Oral Rehydration Therapy. It uses a simple mixture of sugar and salt in water. The mixture does not stop diarrhea. But if used as often as needed, it keeps fluid levels normal until the body has fought off the harmful bacteria.
A. Four ways to improve children's health
B. The major cause of death--diarrhea
C. How to cure diarrhea
D. The situation of young children in the world
E. UNICEF's diarrhea treatment
F. The cost of the diarrhea treatment
Para 1 ______.
The word" radical" (Para 3 ) is closest in meaning to ______.
A.equal
B.extreme
C.excellent
D.basic
In the last Para, the word "unsavoury" probably means_____.
A.not easy to eat
B.disgusting
C.ugly
D.shameful
A.response
B.plainness
C.excuse
D.dislike
The word" incessantly" (Para 1 ) could best be replaced by ______.
A.confidently
B.constantly
C.intelligently
D.optimistically
The word "sacredness" (Line 7, Para 4) is closest in meaning to ______.
A.holiness
B.carefulness
C.seriousness
D.fearfulness
What's the meaning of "arrear" in line 4, Para 4?
A.Payment.
B.Debt.
C.Creditor.
D.Loan.