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【单选题】
产量为100单位时,平均成本是9.9元,再增加1单位产品的边际成本为20元,则增加这个产品以后的平均成本大约是
A.
5元
B.
10元
C.
15元
D.
20元
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【多选题】常见的包装填充物有哪些( )
A.
空气柱
B.
海绵
C.
泡沫
D.
报纸
【简答题】编写程序,求数值型方阵(存放在二维数组中)中,主对角线与副对角线上的对应元素的平方差及其平方差的和(数组中数据随机产生),将最终的程序复制粘贴到学习空间。
【单选题】According to N. Chomsky, a speaker can produce and understand an infinitely large number of sentence because _______.
A.
he has come across all of them in his life
B.
he has internalized a set of rules about his language
C.
he has got a chance to talk with others
D.
he has learned all the rules of his language
【简答题】He learned the rules of the step___step.
【单选题】大宗单一商品的配送,一般采取 ( )拣货方式。
A.
摘果式
B.
分货式
C.
直取式
D.
播种式
【单选题】给婴儿口服脊髓灰质炎减毒疫苗时,正确的做法是( )
A.
用温热水送服
B.
用热开水送服
C.
冷开水送服或含服
D.
热开水溶解后服用
E.
服后半小时可饮用热牛奶
【单选题】According to the passage, the concept of systems involves all of the following EXCEPT
A.
the components of a collection
B.
the functional relationships among parts
C.
the links between different systems
D.
the origin of the scientific method
【判断题】The superordinate term covers the concept of the subordinate.()
A.
正确
B.
错误
【简答题】This is not true ____ the people I am talking about. The teacher told his students to make the most of the opportunities ____ hand. He let the team ______ by not trying hard enough. Have you made ____...
【简答题】Please fill in the blanks with no more than 3 words that you have learned in Text A. An Impressive English Lesson To my son, I am a tedious oddity: a father he is __________ listen to and a man ______...
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