皮皮学,免费搜题
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搜题
【单选题】
A类IP地址所能容纳的主机数为( )。
A.
216-2
B.
224-2
C.
216+2
D.
224+2
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【判断题】从水提液中萃取皂苷,应选用乙醇做萃取溶剂
A.
正确
B.
错误
【单选题】A learning curve relates ________ to ________ and is a case of ________ returns.
A.
output per time period; long-run marginal cost; dynamic decreasing returns
B.
output per time period; long-run marginal cost; dynamic increasing returns
C.
unit cost; cumulative production; dynamic increasing returns
D.
unit cost; cumulative production; dynamic decreasing returns
E.
labor productivity; education; increasing marginal returns
【单选题】Reinhart Marcs manages a portfolio whose monthly returns follow a distribution with a kurtosis measure of 4.2. Relative to a portfolio with normally distributed returns, Marcs’s portfolio has a:
A.
higher chance of extreme upside returns and higher chance of extreme downside returns
B.
lower chance of extreme upside returns and higher chance of extreme downside returns.
C.
higher chance of extreme upside returns and lower chance of extreme downside returns.
【简答题】A.Any astronaut returns from the universe is safe. B.Any astronaut returns from the universe suffers a lot. C.We can assume that an astronaut is safe from his bad looks. D.We cannot assume that an ast...
【单选题】龚自珍《己亥杂诗》"落红不是无情物,化作春泥更护花”一句中,"红”是指?
A.
红色
B.
C.
树叶
【单选题】A learning curve relates ________ to ________ and is a case of ________ returns.
A.
unit cost; cumulative production; dynamic increasing returns
B.
output per time period; long-run marginal cost; dynamic increasing returns
C.
unit cost; cumulative production; dynamic decreasing returns
D.
output per time period; long-run marginal cost; dynamic decreasing returns
E.
labor productivity; education; increasing marginal returns
【简答题】The returns generated by Losers rose gently in this year, meanwhile the returns by Climbers increased greatly and Winners abruptly.
【单选题】32位微机中的32是指该微机()
A.
具有32根地址总线
B.
能同时处理32位十进制数
C.
能同时处理32位二进制数
D.
运算精度可达小数点后32位
【简答题】A.Any astronaut returns from the universe is safe. B.Any astronaut returns from the universe suffers a lot. C.We can assume that an astronaut is safe from his bad looks. D.We cannot assume that an ast...
【简答题】超额收益(excess returns)
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