题目内容

To achieve success you must overcome a series of .

A. objects
B. issues
C. aims
D. obstacles

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After a thorough rest, her face looks again.

A. stunning
B. faint
C. happy
D. satisfied

The hunters struggled to have the beast .

A. gave
B. captured
C. rid
D. took

34. The path is with concrete slabs.

A. made
B. created
C. consisted
D. paved

生物多样性包括如下()层次。

A. 物种多样性
B. 种群多样性
C. 生态系统多样性
D. 遗传多样性