At first, the speaker was referring to the problem of pollution in the country, but
A. committed
B. switched
C. favoured
D. transmitted
查看答案
A. cancer B. health C. disease D. man
There are various forms of adult education, including _____________.
A. by social and economic changes
B. guided self-study and correspondence courses
C. by studying together with children
D. what they did not manage to learn earlier
E. dates back to the eighteenth century
F. mass production
According to the passage, it is possible for us tell one type of person from another because ________.
A. people differ in their behavioral and physical characteristics
B. human fingerprints provide unique information
C. people’s behavior. can be easily described in words
D. human faces have complex features
A. causing B. including C. illustration D. defining
微信支付 
支付宝支付