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【单选题】
Generally speaking the total value of the invoice must be .A.
t he same as that of credit
B.
l ess than that of credit
C.
m ore than that of credit
D.
A. B & C are all right
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举一反三
【单选题】If the price a consumer pays for a product is equal to a consumer’s willingness to pay, then the consumer surplus of that purchase would be
A.
zero
B.
negative and the consumer would not purchase the product.
C.
positive and therefore the consumer would purchase the product.
D.
There is not enough information given to answer this question.
【单选题】The main difference between consumer markets and industrial ones is ______.
A.
consumer markets focus on research while industrial ones focus on developing
B.
consumer markets focus on tailors while industrial ones focus on medicine
C.
consumer markets focus on specific while industrial ones focus on general
D.
consumer markets focus on application while industrial ones focus on plan
【简答题】侏儒症与呆小症的病因及症状有何异同？
【多选题】2型糖尿病的分布特征是
A.
发达国家中经济地位低的人群常见
B.
有秋冬季节性升高的现象
C.
保持传统生活方式的地方患病率低
D.
体力劳动者的患病率低于脑力劳动者
E.
女性发病率高于男性
【多选题】钩端螺旋体的流行特征是（）
A.
本病以青壮年农民发病率最高
B.
流行主要发生在夏秋季
C.
流行时多数患者为感染中毒型
D.
儿童患病少见
E.
是一种人畜共患传染病
【简答题】呆小症的病因是
【简答题】呆小症的病因是
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