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【多选题】
以下对于短期总成本STC的描述,正确的是A.
因为即使没有开始生产，固定成本也也已经产生，因此产量为0时，STC=FC
B.
产量发生变化时，STC为FC与VC之和
C.
STC的变化轨迹与VC相同，且两者间永远相差一个常数FC
D.
STC随着产量增加呈现上升趋势，其上升速度保持不变，为一条直线
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【单选题】What does Marshall think parents should do with the children's spending habit?
A.
They should refuse to pay for their lavish spending.
B.
They should restrain the children's spending within limits.
C.
They should be responsible for providing for the children.
D.
They should draw up a budget plan :for the children.
【简答题】How does earning large amou nts of spending money change students' feeling about school education?
【简答题】单词填空 1. Are there many ______( 印度人) in your city? 2. My teacher told me that to be successful requires _____(某种) efforts. 3. Which ______(时期) of history would you most like to live in? 4. ______(不管多么)...
【单选题】What does the passage mainly discuss?
A.
The use of the psychology of spending money in business.
B.
A special psychology of bargaining.
C.
A method to help compulsive spenders to solve the problem of money.
D.
The psychology of money-spending habits.
【简答题】( ) 2. Our teacher told us that there ___ noend to learning.A. was B. is C. has D. had
【简答题】Our teacher told us that the earth__________ (be) round．
【多选题】对某地 30-40 岁的女性作收缩压( mmHg )和年龄(岁)的线性相关分析, 得 r=0.72(P<0.001), 则 R 2=0.52 。以下说法不正确的是:
A.
该地30~40岁的女性收缩压和年龄没有线性相关关系
B.
该地30~40岁的女性收缩压的变异中，72% 可由年龄来解释
C.
该地30~40岁的女性收缩压的变异中，48% 可由除年龄以外的其他因素来解释
D.
从该研究中可以推断出年龄是导致收缩压升高的因素
E.
该假设检验的原假设为：收缩压和年龄存在线性相关关系
【简答题】The teacher told the boys to c______ all the waste paper lying about and burn it.
【简答题】The teacher told the students not (play)______with tire.
【简答题】How does Booz & Co yse a company in more depth?
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