The criteria for medicine grading in paragraph 2 is based on______．
A.the risk of drug abuse
B.the risk of drug tolerance
C.the risk of drug dependence
D.the risk of drug resistance
A.have discovered
B.have invented
C.pointed out
D.have revealed
A.refuse
B.approve
C.suspect
D.alert
Generally speaking，the author’s attitude toward anti-obesity programs is______．
A.positive
B.negative
C.critical
D.doubtful
A.interpretations
B.implicative
C.understanding
D.implications
Which of the following statements about Generation Rent is true？
A.They consider renting as a lifelong plan rather than a temporary choice．
B.They are in face of economic downturn and a risk of early retirement．
C.They despise the idea of asking parents for money to buy house．
D.They still believe in the blessing of house just like their previous generation．