单项选择题

Does brain power ______ as we get older Scientists now have some surprising answers.

A. descend
B. decline
C. deduce
D. collapse
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单项选择题
Though ______ rich, she was better off than at any other period in her life.
A. by means of
B. within her means
C. by all means
D. by no means
单项选择题
I am sorry I have no time at present to ______ more detail or give you an account of other cities of interest.
A. bring into
B. take into
C. come into
D. go into
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