更多"Scientists say they have high hopes"的相关试题:
[填空题]Scientists say they have high hopes for a drug that could one day provide a new form of treatment for HIV-AIDS. A compound, which interferes with an elusive protein used by the HIV virus to infect human cells, has worked extremely well in monkeys. If the drug proves effective in human trials, scientists say, it could bolster (加强) the effectiveness of two existing AIDS drugs, particularly in fighting drug-resistant strains of the virus.
Researchers at the pharmaceutical (制药的) company Merck are very excited about an experimental drug, which has worked as well in monkeys infected with a primate version of the virus as any of the existing, anti-AIDS drugs.
It works by blocking one of three proteins, or enzymes, the HIV virus uses to gain entrance into and infect human immune system cells.
Inhibitor drugs have been developed to block two of the proteins, to slow progression of the disease after infection. They have become standard therapy as a "cocktail" for people infe
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Scientists have developed a slimming (减肥) drug that successfully suppresses appetite and results in a dramatic loss of weight without any apparent ill effects.
The drug interferes with appetite control and prevents the build-up of fatty tissue. Laboratory mice given the drug lost up to a third of their total body weight.
Within 20 minutes of being given the drug, called C75, the mice lost interest in eating and survived apparently content on just 10 percent of the food they would normally eat.
As a result, mice taking the drug lost 45 percent more weight than mice fed the same amount of food, which compensate for the lack of food by becoming more lazy.
Scientists, from the Johns Hopkins University in Baltimore, said that C75 is likely to produce a similar effect on humans because appetite control in brain is thought to be based on the, same chemical pathways as those in mice.
"We are not claiming to have found a fabled(神奇的) weight-loss
A. controls appetite and causes obvious weight loss.
B. reduces weight with some ill-effect
C. interferes with appetite and builds up fatty tissue
D. is still going through laboratory tests
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{{B}}TEXT C{{/B}}
Some people would
say that the Englishman’s home is no longer his castle; that it has become his
workshop. This is partly because the average Englishman is keen on working with
his hands and partly because he feels, for one reason or another, that he must
do for himself many household jobs for which, some years ago, he would have
hired professional help. The main reason for this is a financial one: the high
cost of labor has meant that builders’ and decorators’ costs have reached a
level which makes them so high that house-proud English people of modest means
hang back. So, if they wish to keep their houses looking bright and smart, they
have to deal with some of the repairs and decorating themselves. As a result,
there has grown up in the post-war years what is sometimes referred to as the
"Do-It-Yourself Movement".
The "Do-It-Yourself Movement" began
with home decorating but has since spread into a much
A. how to be a do-it-yourselfer
B. the Do-It-Yourself Movement
C. the future of the Do-It-Yourself Movement
D. the origin of the Do-It-Yourself Movement
[填空题]
For what do people say "thank you"
They say "thank you" for big favors as well as for ______ .
