According to the author, a flowering plant species whose fecundity has declined due to pesticide spraying may not experience an overall population decline if the plant species can do which of the following？ ______
A. Reproduce itself by means of shoots and runners.
B. Survive to the end of the growing season.
C. Survive in harsh climates.
D. Respond to the fecundity decline by producing more flowers.
查看答案
A．Excessive concern over drinking water, food and bedding.B．Terrible longing to be bac
A. Excessive concern over drinking water, food and bedding.
B. Terrible longing to be back at home.
Concentration on one's work.
D. A feeling of helplessness.
The author contrasts the 1930's with the present in order to show that ______.
A. more people were unemployed in the 1930's
B. unemployment now has less severe effects
C. there is now a greater proportion of elderly and handicapped people among those in poverty
D. poverty has increased since the 1930's
According to the passage, civil rights activist maintain that one disadvantage under which
A. not had sufficient opportunity to secure business created by large corporations
B. been especially vulnerable to government mismanagement of the economy
C. been denied bank loans at rates comparable to those afforded larger competitors
D. not been able to advertise in those media that reach large numbers of potential customers
(29)
A. He can work better without a computer.
B. He is working with a new computer.
C. He has never used a computer in his work.
D. He needs a computer for his work.
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