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【单选题】
边际贡献率与变动成本率二者之间的关系是()A.
变动成本率高，则边际质献率也高
B.
变动成本率高，则边际贡献率低
C.
变动成本率与边际献率二者没有关系
D.
变动成本率是边际贡献率的倒数
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举一反三
【单选题】The car looks so cool, but it’s too expensive _____ me _______.
A.
of; to buy
B.
for; to buy it
C.
for; to buy
D.
of; to buy it
【单选题】The car looks so cool, but it’s too expensive______me______.
A.
Of, to buy
B.
for, to buy it
C.
for, to buy
D.
of, to buy it
【单选题】关于流行性腮腺炎，下列哪项是错误的
A.
病理特征是腮腺化脓性炎症
B.
造成两次病毒血症
C.
是一种多器官受累的疾病
D.
腮腺炎病毒从呼吸道人侵
E.
不同器官发病的时间不同
【单选题】—What do you think of the car, Jack? — It looks so nice. Besides , it’s not too expensive.
A.
However
B.
Whatever
C.
What’s more
D.
What’s worse
【单选题】Look! Tom’s new car looks so _____ in the sun that we hardly open our eyes.
A.
misleading
B.
mysterious
C.
shiny
D.
interesting
【单选题】The car looks so cool, but it’s too expensive______me______.
A.
Of, to buy
B.
B . for, to buy it
C.
C . for, to buy
D.
D . of, to buy it
【单选题】—Wow, your new car looks so cool! —Thank you very much! I _____ it for two weeks.
A.
have had
B.
have bought
C.
bought
D.
buy
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