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【单选题】
需采用洗胃治疗的病人是A.
急性胃扩张
B.
食道静脉曲张
C.
肠梗阻
D.
幽门梗阻
E.
早期胃癌
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反馈参考答案：
举一反三
【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...
【简答题】A．incomes B．interests C．revenues D．returns
【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】A．recruits B．regards C．relics D．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...
【简答题】超额收益(excess returns)
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