The phrase "cotton on" in Paragraph 3 probably means
A. work on.
B. catch on.
C. call on.
D. make on.
查看答案
A．Follow policemen's directions.B．Keep an eye on the weather.C．Avoid snow-covered road
A. Follow policemen's directions.
B. Keep an eye on the weather.
C. Avoid snow-covered roads.
Drive with special care.
The word "gruelling"(Last line, Para.5)probably means
A. strict.
B. specified.
C. human-based.
D. practical.
The difference between CUNY and America's elite colleges lies in
A. tuition fees.
B. admission standards.
C. application procedures.
D. honor programs.
Which of the following statements is CORRECT about Mr. Phelps's natural rate？
A. Mr. Phelps made great efforts to estimate the natural rate.
B. The natural rate can be affected by human intervention.
C. Mr. Phelps is devoted to studying the causes of the natural rate.
D. The natural rate has brought him the greatest honor.
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