3. Which of the following sentence is right?
A: The goal is to learn their risk of thyroid cancer the extent to which radiation may increase.
B: The goal is to learn the extent to which radiation may increase their risk of thyroid cancer.
C: The goal may increase their risk of thyroid cancer is to learn the extent to which radiation.
D: The goal is to learn the extent to radiation which may increase their risk of thyroid cancer.
A: The goal is to learn their risk of thyroid cancer the extent to which radiation may increase.
B: The goal is to learn the extent to which radiation may increase their risk of thyroid cancer.
C: The goal may increase their risk of thyroid cancer is to learn the extent to which radiation.
D: The goal is to learn the extent to radiation which may increase their risk of thyroid cancer.
举一反三
- Q5. The main idea of the text is _____. A: younger people are more susceptible to even small amounts of radiation B: no scientific evidence has been found about the effect of cosmic radiation C: radiation has the greatest effect on fast dividing and developing cells D: radiation may be a greater cancer risk for adults than doctors thought
- Questions 5 to 7 will be based on the following news item.Question 5: A: The income gap is widening in developed countries. B: Cancer cases are increasing dramatically. C: Unhealthy foods can increase the risk of cancer. D: Burden of cancer is shifting to poor countries.
- What is a possible negative effect of olestra according to some critics A: it may impair the digestive system. B: It may affect the overall fat intake. C: It may increase the risk of cancer. D: It may spoil the consumers' appetite.
- 5. What is the adverse impact of the increasing use of antibiotics in man’s early life?___________ A: It may reduce the risk of developing allergic diseases in his later life. B: It may keep the balance of a healthy condition in his later life. C: It may increase the risk of cancer in his later life. D: It may break the balance of friendly germs to unfriendly germs in his later life.
- If a new drug decreases the risk of breast cancer in postmenopausal women from 0.3% per year to 0.15% per year, which of the following accurately describes the change in risk?