题目
With the population explosion, scientists will have to() new methods of increasing the worlds food supply.
A.lead to
B.carry out
C.come up with
D.stick to
第1题
A.come up with
B.carry out
C.lead to
D.stick to
第2题
Among "humanity's current problems", the chief concern of the scientists is______.
A.the impoverishment of developing countries
B.the explosion of the human population
C.the reduction of biological diversity
D.the effect of global warming
第3题
A.do away with
B.put up with
C.come up with
D.go along with
第4题
Among "humanity's current problems" (Line 6, Para. 3), the chief concern of the scientists is______.
A.the impoverishment of developing countries
B.the explosion of the human population
C.the reduction of biological diversity
D.the effect of global warming
第5题
Scientists had thought the "explosion" was caused by ______.
A.a meteor
B.a small comet
C.an spaceship from another planet
D.some big fire
第6题
The author of the passage intends to ______.
A.warn people against the population explosion in the near future
B.compare the demographic growth pattern in the past with that after 1650
C.find out the cause for rapid increase in population in recent years
D.present us a clear and complete picture of the demographic growth
第7题
Scientists found ______ in the area where an "explosion"' had happened.
A.fragments of rock
B.a big hole
C.fallen trees destroyed by fire
D.a crashed spaceship
第8题
The author of the passage intends to ______.
A.warn people against the population explosion in the near future
B.compare the demographic growth pattern in the past with that after 1650
C.find out the cause for rapid increase in population in recent years
D.present us a clear and complete picture of the demographic growth
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