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【单选题】
人的视觉和听觉器官分辨能力有限,将人不能分辨的那部分数据去掉,就达到了数据压缩的目的,这称为
A.
无失真压缩
B.
无损压缩
C.
冗余数据压缩
D.
有损压缩
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参考答案：
举一反三
【单选题】—What’s happened to Mary? —She was ____ frightened. She was also robbed.A．less thanB．no less tha
A.
38.—What’s happened to Mary? —She was ____ frightened. She was also robbed. A．less than
B.
no less than
C.
more than
D.
no more than
查看完整题目与答案
【单选题】When the marginal cost of a price-taking firm is less than the market price of its product, the firm should:
A.
expand output (provided that price is not less than average variable cost).
B.
reduce output (provided that price is not less than average variable cost).
C.
maintain output (provided that price is not less than average variable cost).
D.
charge more than the market price.
查看完整题目与答案
【单选题】For a monopoly, marginal revenue is less than price because
A.
the firm is a price taker.
B.
the demand for the firm's output is perfectly elastic.
C.
the firm can sell all of its output at any price.
D.
the firm must lower price if it wishes to sell more output.
查看完整题目与答案
【单选题】My mother often asks me ________ my homework first. [     ]
A.
to do
B.
do
C.
did
D.
to doing
查看完整题目与答案
【单选题】My mother often asks me ________ my school.
A.
of
B.
with
C.
about
查看完整题目与答案
【单选题】肾维持机体水平衡,主要是通过调节下列哪项活动实现的
A.
肾小球滤过率
B.
近曲小管和髓袢重吸收水量
C.
肾小管的分泌
D.
远曲小管和集合管重吸收水量
查看完整题目与答案
【单选题】A person might need ______ calories to maintain a healthy condition in a day.
A.
no less than 2,000
B.
less than 2,000
C.
more than 2,000
D.
roughly about 2,000
查看完整题目与答案
【单选题】患者,男性,34岁。因慢性胆囊炎在门诊预约 进行胆囊造影检査,护士为其讲解检查的方 法。下列错误的是
A.
检查前一日中午进高脂肪餐，使胆囊排空
B.
检查前一日晚餐进无脂肪、低蛋白、高糖
C.
晚餐后口服造影剂，禁食、禁烟至次日晨
D.
检查当日早餐进清淡饮食，可少量饮水
E.
第一次摄片如胆囊显影良好则进高脂肪 餐，30分钟后再摄片
查看完整题目与答案
【简答题】In this part, you are required to write a composition entitled Cyber Crimes in no less than 200 words. Your composition should be based on the following outlines: Outlines: 1) 网上犯罪的形式。 2) 网上犯罪的根源。 3) ...
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【简答题】Do safe alternatives to environmentally erous household cleaners cost more or less than the commercial products?
查看完整题目与答案
相关题目：
【单选题】—What’s happened to Mary? —She was ____ frightened. She was also robbed.A．less thanB．no less tha
A.
38.—What’s happened to Mary? —She was ____ frightened. She was also robbed. A．less than
B.
no less than
C.
more than
D.
no more than
查看完整题目与答案
【单选题】When the marginal cost of a price-taking firm is less than the market price of its product, the firm should:
A.
expand output (provided that price is not less than average variable cost).
B.
reduce output (provided that price is not less than average variable cost).
C.
maintain output (provided that price is not less than average variable cost).
D.
charge more than the market price.
查看完整题目与答案
【单选题】For a monopoly, marginal revenue is less than price because
A.
the firm is a price taker.
B.
the demand for the firm's output is perfectly elastic.
C.
the firm can sell all of its output at any price.
D.
the firm must lower price if it wishes to sell more output.
查看完整题目与答案
【单选题】My mother often asks me ________ my homework first. [     ]
A.
to do
B.
do
C.
did
D.
to doing
查看完整题目与答案
【单选题】My mother often asks me ________ my school.
A.
of
B.
with
C.
about
查看完整题目与答案
【单选题】肾维持机体水平衡,主要是通过调节下列哪项活动实现的
A.
肾小球滤过率
B.
近曲小管和髓袢重吸收水量
C.
肾小管的分泌
D.
远曲小管和集合管重吸收水量
查看完整题目与答案
【单选题】A person might need ______ calories to maintain a healthy condition in a day.
A.
no less than 2,000
B.
less than 2,000
C.
more than 2,000
D.
roughly about 2,000
查看完整题目与答案
【单选题】患者,男性,34岁。因慢性胆囊炎在门诊预约 进行胆囊造影检査,护士为其讲解检查的方 法。下列错误的是
A.
检查前一日中午进高脂肪餐，使胆囊排空
B.
检查前一日晚餐进无脂肪、低蛋白、高糖
C.
晚餐后口服造影剂，禁食、禁烟至次日晨
D.
检查当日早餐进清淡饮食，可少量饮水
E.
第一次摄片如胆囊显影良好则进高脂肪 餐，30分钟后再摄片
查看完整题目与答案
【简答题】In this part, you are required to write a composition entitled Cyber Crimes in no less than 200 words. Your composition should be based on the following outlines: Outlines: 1) 网上犯罪的形式。 2) 网上犯罪的根源。 3) ...
查看完整题目与答案
【简答题】Do safe alternatives to environmentally erous household cleaners cost more or less than the commercial products?
查看完整题目与答案
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