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【单选题】
______ __work has been done to improve the people's living standard. [     ]
A.
Many
B.
A great many
C.
A large number of
D.
A great amount of
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【判断题】对国家标准规定速度大于 0.63m/s的电梯轿厢必须采用瞬时式安全钳。
A.
正确
B.
错误
【单选题】设函数 在 处可导,且 ,则 等于
A.
1;
B.
C.
D.
.
【单选题】电梯检修运行时,运行速度GB(国家标准)中有怎样的规定。( )
A.
等于0.63m/s
B.
不确定
C.
小于0.63m/s
D.
大于0.63m/s
【简答题】A)resistant C)insistent B)persistent D)consistent 78.A)consumer C)retailers B)businessmen D)manufacturers 79.A)casual C)serious B)critical D)favorable 80.A)However C)Moreover B)Otherwise D)Nevertheles...
【简答题】It can be inferred from the passage that a smart consumer should ________. A) think carefully about the benefits described in the advertisements B) guard against the deceiving nature of advertisements...
【单选题】A consumer surplus can be best described as:
A.
what the consumer has "left-over" after a purchase.
B.
how much extra a consumer has to pay for a product.
C.
value for the money.
D.
the premium charged for a quality product.
【简答题】It can be inferred from the passage that a smart consumer should ________. A) think carefully about the benefits described in the advertisements B) guard against the deceiving nature of advertisements...
【简答题】申请经营国内旅游业务和入境旅游业务的旅行社必须具备有()的经营场所,有()的营业设施,有不少于()万元的注册资本和不少于()万元的质量保证金。
【单选题】The value of a product to an average consumer is V; and the average price that the firm can charge a consumer for that product is P. Here, V - P can be termed as:
A.
consumer surplus per unit.
B.
producer surplus per unit.
C.
profit growth.
D.
profit per unit sold.
【简答题】But if a polite complaint does not achieve the desired result, the consumer can go a step further. She or he can threaten to take the seller to court or report the seller to a private or pubic organiz...
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