单项选择题

Plastic bags are useful for holding many kinds of food, （）their cleanness, toughness and low cost.

A．by virtue of
B．in addition to
C．for the sake of
D．as opposed to

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热门试题

单项选择题Many of the fads of the 1970s （）as today's latest fashions.

A．are being revived
B．is revised
C．are revoked
D．is being reviled

单项选择题Pam loves children but she doesn't like them when they're noisy. It gets on her （）

A．nerves
B．feelings
C．energies
D．pains