题目内容

They need to ____ the use of available resources.

A. optical
B. optimistic
C. optimize
D. optional

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Her husband was killed in an accident. Three months later, her mother’s death ____ her sadness.

A. intensity
B. intensified
C. interacted
D. intensive

All the characters of the novel are imagined and invented. They are ____.

A. facetious
B. fictitious
C. imaginable
D. imagining

‘‘V”字行走时，两脚外展呈

A字
B. V字
C. 平行
D. T字

‘‘V”字行走练习时，在（）的基础下，一只脚支撑重心，另一只脚向前迈步。

A. 原地踏步
B. 平行滑行
C. 交叉行走
D. 交叉滑行