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【单选题】
旅游者购物后发现是残次品,赝品,要求导游员帮其退换,导游员应该( )
A.
积极协助，必要时陪同前往
B.
要求旅游者自行退换
C.
直接拒绝
D.
劝阻旅游者息事宁人
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【单选题】The level of lead contamination in United States rivers declined between 1975 and 19Federal regulations requiring a drop in industrial discharges of lead went into effect in 1975, but the major cause ...
A.
The level of lead contamination in United States rivers fell sharply in both 1975 and 1983.
B.
Most of the decline in industrial discharges of lead occurred before 1976, but the largest decline in the level of river contamination occurred between 1980 and 1985.
C.
Levels of lead contamination in rivers fell sharply in 1975 - 1976 and rose very slightly over the next nine years.
D.
Levels of lead contamination rose in those rivers where there was reduced river flow due to drought.
E.
Although the use of leaded gasoline declined 75 percent between 1975 and 1985, 80 percent of the decline took place in 1985.
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【简答题】A．Government can break into one's home without proper permission if necessary. B．Federal Constitution forbids surveillance in areas such as locker rooms or the employee lounge. C．Employers are forbidd...
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【单选题】在原发性慢性肾炎中，下列哪项是正确的
A.
病程必须超过一年
B.
多由急性肾小球肾炎迁延不愈演变而来
C.
其发病机制以免疫反应性炎症为主
D.
一般进展急骤，约半年内发展至尿毒症
E.
病变累及单侧或双侧肾脏的肾小球
查看完整题目与答案
【单选题】近代中国社会诸多社会矛盾中最主要的矛盾是( )。
A.
地主阶级和农民阶级的矛盾
B.
帝国主义和中华民族的矛盾
C.
资产阶级和无产阶级的矛盾
D.
封建主义和人民大众的矛盾
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【简答题】（）开关、（）开关和（）都是低压开关电器。
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【单选题】对于齐次线性方程组的系数矩阵化为阶梯形时( )
A.
只能进行行变换
B.
只能进行列变换
C.
不能进行行变换
D.
可以进行行和列变换
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【简答题】开关、 开关和 开关都是低压开关电器。
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【单选题】弗里德曼的持久收入理论认为消费跟谁相关?
A.
收入
B.
持久收入
C.
暂时收入
查看完整题目与答案
【判断题】线性时不变连续系统具有积分特性。
A.
正确
B.
错误
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【简答题】Passage Two The most important thing in the news last week was the rising discussion in Nashville about the educational needs of children. The shorthand( 简写 )educators use for this is "pre-K"—meaning ...
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相关题目：
【单选题】The level of lead contamination in United States rivers declined between 1975 and 19Federal regulations requiring a drop in industrial discharges of lead went into effect in 1975, but the major cause ...
A.
The level of lead contamination in United States rivers fell sharply in both 1975 and 1983.
B.
Most of the decline in industrial discharges of lead occurred before 1976, but the largest decline in the level of river contamination occurred between 1980 and 1985.
C.
Levels of lead contamination in rivers fell sharply in 1975 - 1976 and rose very slightly over the next nine years.
D.
Levels of lead contamination rose in those rivers where there was reduced river flow due to drought.
E.
Although the use of leaded gasoline declined 75 percent between 1975 and 1985, 80 percent of the decline took place in 1985.
查看完整题目与答案
【简答题】A．Government can break into one's home without proper permission if necessary. B．Federal Constitution forbids surveillance in areas such as locker rooms or the employee lounge. C．Employers are forbidd...
查看完整题目与答案
【单选题】在原发性慢性肾炎中，下列哪项是正确的
A.
病程必须超过一年
B.
多由急性肾小球肾炎迁延不愈演变而来
C.
其发病机制以免疫反应性炎症为主
D.
一般进展急骤，约半年内发展至尿毒症
E.
病变累及单侧或双侧肾脏的肾小球
查看完整题目与答案
【单选题】近代中国社会诸多社会矛盾中最主要的矛盾是( )。
A.
地主阶级和农民阶级的矛盾
B.
帝国主义和中华民族的矛盾
C.
资产阶级和无产阶级的矛盾
D.
封建主义和人民大众的矛盾
查看完整题目与答案
【简答题】（）开关、（）开关和（）都是低压开关电器。
查看完整题目与答案
【单选题】对于齐次线性方程组的系数矩阵化为阶梯形时( )
A.
只能进行行变换
B.
只能进行列变换
C.
不能进行行变换
D.
可以进行行和列变换
查看完整题目与答案
【简答题】开关、 开关和 开关都是低压开关电器。
查看完整题目与答案
【单选题】弗里德曼的持久收入理论认为消费跟谁相关?
A.
收入
B.
持久收入
C.
暂时收入
查看完整题目与答案
【判断题】线性时不变连续系统具有积分特性。
A.
正确
B.
错误
查看完整题目与答案
【简答题】Passage Two The most important thing in the news last week was the rising discussion in Nashville about the educational needs of children. The shorthand( 简写 )educators use for this is "pre-K"—meaning ...
查看完整题目与答案
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