单项选择题

What does "sagging"(para.5) probably mean
A) Decline. C) Become more active.
B) Develop. D) Become stronger.

A．What does "sagging"(para.5) probably mean
B．Decline.
C．Develop.
D．Become more active.
E．Become stronger.
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单项选择题
According to the author, which of the following statements is true
A．Wisdom may be developed with life experience.
B．People will lose mental skills together with wisdom.
C．Wisdom is superior in importance to mental aging.
D．Wisdom is inferior in importance to mental aging.
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