16. The relative size of an insect’s wing is much greater than _____.
(A) of a bird’s wing
(B) that of a bird’s wing
(C) a wing of a bird is
(D) that wing of a bird

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統計： A(14), B(149), C(22), D(30), E(0) #87442

詳解 (共 2 筆)

#1320897
that of = the size of 
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#1320899

The tail of a rabbit is shorter thanthat ofa cat.

The tail of a rabbit is shorter than the tail of a cat.
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