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【单选题】
四阶行列式D的值为m,将其依次做如下变换后 交换D的第二三列 将行列式的所有元素都乘以2 将第一行的三倍加到第四行 将第一列元素除以2 做完这些变换后,行列式的值为( )
A.
-m
B.
-2m
C.
2m
D.
-8m
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参考答案：
举一反三
【单选题】In the 1970s, the Surgeon General office's investigation suggested that television violence was unrelated to aggressive behavior in some children.
A.
ue
B.
lse
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【多选题】关于公司执行信用标准,说法正确的是:
A.
降低对符合信用风险标准客户的赊销额。
B.
限制公司的销售机会。
C.
可能会对不符合可接受信用风险标准的客户提供赊销。
D.
会增加随后还款的风险并增加坏账费用。
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【单选题】The general surgeon must separate and ligature following blood vessels during subtotal gastrectomy,except:
A.
left gastric vessels
B.
short gastric vessels
C.
right gastric vessels
D.
left gastroepiploic vessels
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【单选题】1 It's been 40 years since the surgeon general issued the first report warning that cigarettes cause cancer. Since then, the public has grown acutely aware that smoking is lethal. But though the publi...
A.
Quite a big percentage of Americans are cigarette smokers.
B.
Americans are well informed of the danger from smoking.
C.
Smokers of cigarettes may die of cancer.
D.
The campaign against smoking succeeds in preventing Americans from smoking.
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【单选题】Surgeon General C.Everett Koop's study boosted pro-choice forces because______.
A.
abortion causes no more harm to woman than otherwise
B.
it proves that Koop is a choice advocate
C.
women are mentally healthier if they are given the right to have an abortion
D.
it convinces people that abortion is the only alternative to fatal clandestine methods
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【单选题】1 It's been 40 years since the surgeon general issued the first report warning that cigarettes cause cancer. Since then, the public has grown acutely aware that smoking is lethal. But though the publi...
A.
Quite a big percentage of Americans are cigarette smokers.
B.
Americans are well informed of the danger from smoking.
C.
Smokers of cigarettes may die of cancer.
D.
The campaign against smoking succeeds in preventing Americans from smoking.
查看完整题目与答案
【单选题】By citing the surgeon general's statement, the author intends to explain______.
A.
why smoking outdoors should be banned
B.
that outdoor exposure causes substantial health damage
C.
that the argument of outdoor-smoking-ban advocates is not solid
D.
how the outdoor smoking ban in fact increases smoking exposure
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【单选题】The Surgeon General announces that eating apples promotes healthy teeth. As a result, the equilibrium price of apples
A.
increases, and producer surplus increases.
B.
increases, and producer surplus decreases.
C.
decreases, and producer surplus increases.
D.
decreases, and producer surplus decreases.
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【单选题】下列金融机构中，不以盈利为目标的金融机构是______。
A.
村镇银行
B.
中外合资商业银行
C.
大型国有控股商业银行
D.
政策性银行
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【单选题】下列关于贷款类银行信托理财产品的说法，错误的是（ ）。
A.
该类产品通常是银行将募集来的客户资金投资于信托投资公司的信托计划，信托计划到期后由信托投资公司根据信托投资情况支付本金和收益
B.
其产生背景是银行信贷规模的限制
C.
该类产品收益来源于贷款利息，执行人民银行相关利率标准
D.
贷款的信用风险由购买理财产品的投资者与信托公司按比例承担
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【单选题】In the 1970s, the Surgeon General office's investigation suggested that television violence was unrelated to aggressive behavior in some children.
A.
ue
B.
lse
查看完整题目与答案
【多选题】关于公司执行信用标准,说法正确的是:
A.
降低对符合信用风险标准客户的赊销额。
B.
限制公司的销售机会。
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【单选题】The general surgeon must separate and ligature following blood vessels during subtotal gastrectomy,except:
A.
left gastric vessels
B.
short gastric vessels
C.
right gastric vessels
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left gastroepiploic vessels
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【单选题】1 It's been 40 years since the surgeon general issued the first report warning that cigarettes cause cancer. Since then, the public has grown acutely aware that smoking is lethal. But though the publi...
A.
Quite a big percentage of Americans are cigarette smokers.
B.
Americans are well informed of the danger from smoking.
C.
Smokers of cigarettes may die of cancer.
D.
The campaign against smoking succeeds in preventing Americans from smoking.
查看完整题目与答案
【单选题】Surgeon General C.Everett Koop's study boosted pro-choice forces because______.
A.
abortion causes no more harm to woman than otherwise
B.
it proves that Koop is a choice advocate
C.
women are mentally healthier if they are given the right to have an abortion
D.
it convinces people that abortion is the only alternative to fatal clandestine methods
查看完整题目与答案
【单选题】1 It's been 40 years since the surgeon general issued the first report warning that cigarettes cause cancer. Since then, the public has grown acutely aware that smoking is lethal. But though the publi...
A.
Quite a big percentage of Americans are cigarette smokers.
B.
Americans are well informed of the danger from smoking.
C.
Smokers of cigarettes may die of cancer.
D.
The campaign against smoking succeeds in preventing Americans from smoking.
查看完整题目与答案
【单选题】By citing the surgeon general's statement, the author intends to explain______.
A.
why smoking outdoors should be banned
B.
that outdoor exposure causes substantial health damage
C.
that the argument of outdoor-smoking-ban advocates is not solid
D.
how the outdoor smoking ban in fact increases smoking exposure
查看完整题目与答案
【单选题】The Surgeon General announces that eating apples promotes healthy teeth. As a result, the equilibrium price of apples
A.
increases, and producer surplus increases.
B.
increases, and producer surplus decreases.
C.
decreases, and producer surplus increases.
D.
decreases, and producer surplus decreases.
查看完整题目与答案
【单选题】下列金融机构中，不以盈利为目标的金融机构是______。
A.
村镇银行
B.
中外合资商业银行
C.
大型国有控股商业银行
D.
政策性银行
查看完整题目与答案
【单选题】下列关于贷款类银行信托理财产品的说法，错误的是（ ）。
A.
该类产品通常是银行将募集来的客户资金投资于信托投资公司的信托计划，信托计划到期后由信托投资公司根据信托投资情况支付本金和收益
B.
其产生背景是银行信贷规模的限制
C.
该类产品收益来源于贷款利息，执行人民银行相关利率标准
D.
贷款的信用风险由购买理财产品的投资者与信托公司按比例承担
查看完整题目与答案
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