A.internal fat leading to disease has been proved
B.thin people usually have internal fat even if they are slim
C.it is easier to burn off internal fat than external fat
D.exercise plays an important role in people's life for keeping healthy
答案:D 主旨大意题。由最后一段可知,锻炼在人们保健中起着重要的作用。
63.The underlined part
“shortcut” in the last paragraph means________.
A.a long road
B.an easy way
C.a clear difference
D.a short distance
答案:B 猜测词义题。要想保健,你必须锻炼。没有“捷径”可走。
C
(2017·河北省普高质检)
In an ideal world, people would not test medicines on animals.
Such experiments are stressful and sometimes painful for animals, and expensive and timeconsuming for people. Yet animal experimentation is still needed to help bridge vast gaps in medical knowledge.
That is why there are some 50 to 100 million animals used in research around the world each year.
Europe, on the whole, has the world's most restrictive laws on animal experiments. Even so, its scientists use some 12 million animals a year, most of them mice and rats, for medical research.
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