The main idea of the first paragraph is
A. The economy remains depression.
B. More and more people like to choose online shopping.
C. Shopping center are growing.
D. Online shopping is cheaper than shopping center.
查看答案
The attitude to technology abuses during holiday and religious activities is
A. happy and joy.
B. angry and depress.
C. ignorant and unstable.
D. sensitive.
Which of the following can be inferred from the passage？
A. Cancer can be passed on to the next generation.
B. Senior citizens are more vulnerable to the hurt of radiation.
C. The impact of radiation can be accessible over generations.
D. Scientists have found out solutions to radiation.
Why does the speaker say that radiation is similar to radio waves？
A. Because both of them can be detected by human senses.
Because both of them can be sensed by a radio receiver.
C. Because both of them are harmful.
D. Because both of them can only be detected by devices.
According to the passage, why does the cancer increase？
A. Because people expose too much to the computer.
Because people don't care about the low levels of radiation.
C. Because the cells are killed by radiation.
D. Because the cells produce themselves in an unusual way.
微信支付 
支付宝支付