The author does an assessment of all high-risk urban areas in the U.S.A.YB.NC.NG
The author does an assessment of all high-risk urban areas in the U.S.
A.Y
B.N
C.NG
The author does an assessment of all high-risk urban areas in the U.S.
A.Y
B.N
C.NG
第1题
What does the author mean by "better off" in Paragraph 3?
A.richer
B.wiser
C.happier
D.luckier
第2题
What does the author think about the genetic engineering of pine trees?
A.Time-consuming.
B.Worthwhile.
C.Significant.
D.Technically impossible.
第6题
What does the author say about the effect of nicotine on smokers?
A.It threatens their health.
B.It heightens their spirits.
C.It suppresses their appetite.
D.It slows down their metabolism.
第7题
What suggestion does the author make in order to grasp this opportunity?
A.Search for new energy sources.
B.Forbid motor transportation.
C.Accept a new life style.
D.Adopt a new form. of invention.
第9题
Why does the author object to classifying parenting as a personal choice?
A.It is regarded as a legal obligation.
B.It relies largely on social support.
C.It generates huge social benefits.
D.It is basically a social undertaking.