题目内容

n. the gradual development of plants, animals, etc. over many years as they adapt to changes in their environment

A. equation
B. exhibition
C. excursion
D. evolution

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adj. the most important or famous; in a position at the front;

A. elaborate
B. external
C. foremost
D. feasible

v. to close or join together the two parts of sth.; to become closed or joined together

A. evaluate
B. frown
C. fasten
D. emerge

v. to make sure that people obey a particular law or rule

A. enclose
B. entitle
C. encounter
D. enforce

n. the quality of doing sth. well with no waste of time or money

A. funeral
B. efficiency
C. election
D. equality