更多"Stress can be either helpful or har"的相关试题:
[单项选择]It is becoming increasingly clear that stress can wreak ______ not only with the immune system, cardiovascular system but hormones too.
A. havoc
B. misery
C. lement
D. wreck
[单项选择]______ is well-known to all, too much stress can cause disease.
A. Which
B. That
C. It
D. As
[单项选择]In what way can the work stress be reduced
A. To have more work manually.
B. To be under more supervision.
C. To be less ambitious.
D. To be rewarded for their success.
[单项选择]Exercise habits can help relieve stress in that ______.
A. exercising gives people opportunities to meet friends
B. exercises prevent people from eating too much
C. exercising gives people a break from physical, mental and emotional tension
D. people can learn new skills while doing exercises
[单项选择]（）the stress of examinations are over,we can all relax.
A. While
B. Even though
C. Now that
D. However
[单项选择]The arguments that cloning will have harmful effects ______.
A. are very convincing
B. have forced people to stop cloning
C. have forced people to question the concept of cloning
D. have compelled people to debate the implications of cloning
[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]A) negative C) harmful B) positive D) a beneficial
A. negative
B. positive
C. harmful
D. a beneficial
[单项选择]Why the aviation fuel is more harmful to the environment than others
A. Because of the poisonous quality.
B. It has to do with the position of the pollution.
C. The aviation fuel is special.
D. There is too much dirt in its resulting smoke.
[单项选择]Smoking is so harmful to personal health that it kills______people each year than automobile accidents.
A. more seven times
B. seven times more
C. as seven times
D. seven times as
