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【判断题】
孤植是指乔木或灌木的孤立种植类型,但不意味只能栽一棵树。
A.
正确
B.
错误
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【单选题】MPS in country A is .15. If the residents of country A’s disposable income increases by $500 million, their saving rises by __________.
A.
$425 million
B.
$75 million
C.
15% of the GDP
D.
85% of the GDP
【单选题】Recent epidemiological studies have shown that the residents of Greenborough County have substantially higher rates of pancreatic and stomach cancer than do the residents of the state as a whole. Rese...
A.
The county's residents have the highest rate in the state of smoking, a habit that has been conclusively linked with higher rates of several types of cancer.
B.
The residents of the county get their water from springs that could not have been contaminated by the petrochemical plant implicated by the researchers.
C.
The petrochemical plant has been found to be in violation of EPA emissions standards five times in the last two years.
D.
Residents of Greenborough County, like people throughout the state, are fond of spicy and fatty foods that have been linked to a number of health problems.
E.
There are no known medical treatments that can permanently halt the development of certain forms of pancreatic cancer.
【单选题】According to a survey of American households, the probability that the residents own 2 cars if annual household income is over $25,000 is 80%. Of the households surveyed, 60% had incomes over $25,000 ...
A.
0.12.
B.
0.18.
C.
0.40.
D.
0.70.
【单选题】下列关于青金石表述不正确的是:
A.
常见的青金石实际上是一种以青金石为主要矿物的玉石
B.
单晶青金石较为少见
C.
青金石是一种等轴晶系矿物
D.
青金石在滤色镜下不变色
【单选题】If the residents of a country receive money from their relatives living abroad, it will be counted as:
A.
credit in the current account
B.
debit in the current account
C.
credit in the capital account
D.
debit in the capital account
【单选题】投资者甘愿冒着风险进行投资,是因为( )。
A.
进行风险投资可使企业获得报酬
B.
进行风险投资可使企业获得等同于资金时间价值的报酬
C.
进行风险投资可使企业获得超过资金时间价值以上的报酬
D.
进行风险投资可使企业获得利润
【判断题】要取消或放弃误选对象,可以按 Esc键
A.
正确
B.
错误
【单选题】下列关于青金石表述不正确的是:
A.
青金石是一种等轴晶系矿物。
B.
常见的青金石实际上是一种以青金石为主要矿物成分的玉石。
C.
单晶青金石较为罕见。
D.
在滤色镜下不变色。
【单选题】一维方势垒势场中运动的粒子,穿透势垒的概率随势垒宽度增大而( ),随势垒高度增大而( )。
A.
增大; 增大
B.
增大; 减小
C.
减小; 增大
D.
减小; 减小
【简答题】投资回收期自项目投建或 之日起计算,单位通常用“年”来表示。
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