With the population explosion, scientists will have to ______new methods of increasing the world’s food supply.
A.stick to
B.come up with
C.carry out
D.lead to
A.stick to
B.come up with
C.carry out
D.lead to
A.by
B.on
C.with
D.in
A.increased at one fourth the rate of urban population
B.increased at four times the rate of urban population
C.will be four times bigger by 2025
D.will double in the period 1990-2025
A.contributed
B.attributed
C.distributed
D.spread
A.caused
B.forced
C.imposed
D.enforced
A.the whole of thepopulation enjoys
B.the whole of the population do enjoy
C.does the whole of the population enjoy
D.the whole of the population enjoy
A、The greatness of a nation is no less determined by its population than the greatness of a man is determined by his height.
B、The greatness of a nation is no as determined by its population as the greatness of a man is determined by his height.
C、The greatness of a nation is not determined by its population the same as the greatness of a man is determined by his height.
D、The greatness of a nation is no more determined by its population than the greatness of a man is determined by his height.
A.five hundred million
B.five hundred millions
C.five hundreds million
D.five hundred millions people