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【单选题】
以下哪个不是R中数据集的读取方式
A.
read.xlsx()
B.
数据输入
C.
read.table()
D.
read.csv()
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举一反三
【单选题】The reason why the rock was hard to get down was that ______.
A.
it had been worn smooth
B.
there was no grass on it
C.
it, was wet and slippery
D.
it was soft and sandy
【判断题】有学生在大学运动会1000米项目比赛中猝死,这属于学校的教学事故。
A.
正确
B.
错误
【单选题】下列关于旅游者所享有的权利的说法中,不正确的是( )
A.
旅游者有权自主选择旅游产品和服务
B.
旅游者有权要求旅游经营者根据临时情况提供产品和服务
C.
旅游者有权拒绝旅游经营者的强制交易行为
D.
旅游者有权知悉其购买的旅游产品和服务的真实情况
【单选题】The reason ______ most Chinese have healthy white teeth is ______ they eat a healthy diet.
A.
why; that
B.
why; because
C.
that; that
D.
for; that
【单选题】The major reason why Americans enjoy an abundant food supply is that the arable land at their disposal for food production is ______.
A.
three times more the world average
B.
three times as much the world average
C.
three times the world average
D.
the world average is three times
【判断题】旅游者有权自主选择旅游产品和服务并拒绝强制交易。
A.
正确
B.
错误
【单选题】The reason ____he was late was ____he had taken a wrong bus.
A.
why; because
B.
for; because of
C.
why; that
D.
for; that
【判断题】《旅游法》第9条规定,旅游者有权自主选择旅游产品和服务,有权拒绝旅游经营者的强制交易行为。旅游者有权知悉其购买的旅游产品和服务的真实情况。旅游者有权要求旅游经营者按照约定提供产品和服务。
A.
正确
B.
错误
【单选题】下列选项, 不属于 宋代诉讼法制变化的是:
A.
为不妨碍农务经营,对提起诉讼时间加以限制,规定在农忙之时不得提起民事诉讼(刑事诉讼不受影响),是为“务限法”
B.
当犯人称冤,或家属代为申诉时,由原审机关的其他推官复审,称为:“移推”
C.
当犯人称冤,或家属代为申诉时,由上级官府派员或指定其他官府复审,称为“移司别推”
D.
强窃盗犯服刑完毕后,发付原籍充“警迹人”
【判断题】旅游者有权自主选择旅游产品和服务并拒绝强制交易。因此,旅游经营者在旅游活动中任何情形下均不得安排行程外的购物活动。
A.
正确
B.
错误
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