更多"Smoking is so harmful to personal h"的相关试题:
[单项选择]Smoking is so harmful to personal health that it kills ______ people each year than automobile accidents.
A. seven more times
B. seven times more
C. over seven times
D. seven times
[单项选择]Frequent exposure to X-ray is harmful, so the use of X-ray should be limited to occasions when________.
A. primary
B. elementary
C. necessary
D. emergent
[单项选择]Although salt is now seen as harmful to health, it has been used for centuries as method of ______ foods.
A. maintaining
B. preserving
C. manufacturing
D. reserving
[单项选择]It's harmful to one's health to ______ smoking and drinking.
A. take on
B. take to
C. take in
D. take off
[单项选择]It's harmful to one's health to _______ smoking and drinking.
A. take on
B. take in
C. take to
D. take off
[单项选择]Fresh air is ____________ to good health. So you should go out more and take more fresh air.
A. fundamental
B. elementary
C. principal
D. dominant
[单项选择]If you ______ smoking, your health will improve soon.
A. gave up
B. give up
C. had given up
D. will give up
[单项选择]Great scientists were so successful because they knew how to learn things outside school by themselves.
[单项选择]0.001mol/kg K2SO4和0.003mol/kg的Na2SO4溶液在298K时的离子强度是：（）
A. 0.001mol/kg
B. 0.003mol/kg
C. 0.002mol/kg
D. 0.012mol/kg
[单项选择]The problem was so tough that the pupils did not know how to __________ it.
A. abolish
B. encounter
C. remove
D. tackle
[单项选择]Because there is evidence of severely harmful effects from chemical dumps, the government has ______tougher cleanup measures.
A. imposed
B. impulsed
C. implemented
D. incorporated
[单项选择]That genetically-modified crops could have harmful effects that can be deduced from the fact that ______.
A. cross-breeding is a natural process
B. hybrids are generally more successful at breeding than natural plants
C. gene movement between cultivated plants and wild ones is inevitable
D. new research shows that genetically-modified plants are likely to develop into weeds
[单项选择]Since smoking is harmful，governments worldwide should conduct serious campaigns against is．（）
A. 自知道吸烟有害以来，世界政府就应该采取严厉的禁烟措施。
B. 因为吸烟有害处，世界政府就应该开展严肃的禁烟运动。
C. 既然吸烟有害，各国政府就应该开展严肃的禁烟运动。
D. 由于吸烟有害，各国政府开展了严肃的禁烟运动。
[单项选择]Stress can be either helpful or harmful depending on ______.
A. how a person deals with stress
B. what kind of stress it is
C. whether the stress can lead to emotional, intellectual, or physical disorder
D. how much exercise you do
[单项选择]One of the harmful effects of noise on human performance is that ______.
[单项选择]Rats are harmful. We must get rid （） them.
A. with
B. of
C. off
D. against
[单项选择]Many people want to read this book. So you______ keep it for more than two weeks.
