光在哪，神在那。

C Although such devices as the abacus and the desk calculating machine have limited calculating _________, the computer is characterized by the number and complication of operations it can perform and by its ability to store, retrieve and process data.

(A) ability

(B) situations

(C) capacities

(D) imagination

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capable(a.)

capability (n.)

be  capable of + N./ Ving.

able (a.)

ability (n.)

be able to + V.

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比較「能力」上的區別

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