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【单选题】
用Ce4+标准滴定溶液滴定Fe2+应选择 ( )作指标电极
A.
pH玻璃电极
B.
银电极
C.
氟离子选择性电极
D.
铂电极
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参考答案：
举一反三
【单选题】设函数 ,则下列说法正确的是 ( ).
A.
为 的可去间断点;
B.
在 至少有一个零点;
C.
为 的无穷间断点;
D.
为 的一个驻点.
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【简答题】阅读理解。 One of the founding fathers of the internet has predicted the end of traditional television. Vint Serf, who helped to build the internet while working as a researcher in America, said that telev...
查看完整题目与答案
【单选题】对某种产品按质量好坏分成：一等品、二等品、三等品和次品，这里所使用的数据尺度是（）。
A.
类别尺度
B.
顺序尺度
C.
等距尺度
D.
等比尺度
查看完整题目与答案
【单选题】设函数 ,则下列说法正确的是( )
A.
在区间 上递增
B.
在区间 上递减
C.
在 处取到极小值
D.
在 处取到极大值
查看完整题目与答案
【单选题】设函数 满足微分方程 ,且 ,则对函数 的下列说法正确的是( ).
A.
在x 0 处取得极大值
B.
在x 0 的某邻域内单调增加
C.
在x 0 处取得极小值
D.
在x 0 的某邻域内单调减小
查看完整题目与答案
【单选题】The police station asks for public help because______.
A.
ordinary people like the television programme
B.
ordinary people are interested in pictures of paintings, jewellery, etc.
C.
the policemen can not catch the thieves themselves
D.
ordinary people may help the policemen get useful information about the criminals
查看完整题目与答案
【简答题】You change the channels for the fourth time and realize that once again there’s nothing on television that gets your attention. Not a problem! Throw on some running shoes and comfortable clothes and g...
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【简答题】Directions: For this part, you are allowed 30 minutes to write a composition on the topic 'Television' Your composition should be based on your own understanding of the topic and it should be no less ...
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【单选题】B Good evening, ladies and gentlemen, I’m Roy , and this is my show. This is a television show for all families, and I know you’ll enjoy it. Let’s start with a story. Once there was a proud pig on a f...
A.
a family show on TV
B.
for kids only
C.
a sports show
查看完整题目与答案
【单选题】Which of the following is NOT advisable for you?
A.
Drinking water.
B.
Watching less television.
C.
Eating no breakfast.
D.
Eating more grains.
查看完整题目与答案
相关题目：
【单选题】设函数 ,则下列说法正确的是 ( ).
A.
为 的可去间断点;
B.
在 至少有一个零点;
C.
为 的无穷间断点;
D.
为 的一个驻点.
查看完整题目与答案
【简答题】阅读理解。 One of the founding fathers of the internet has predicted the end of traditional television. Vint Serf, who helped to build the internet while working as a researcher in America, said that telev...
查看完整题目与答案
【单选题】对某种产品按质量好坏分成：一等品、二等品、三等品和次品，这里所使用的数据尺度是（）。
A.
类别尺度
B.
顺序尺度
C.
等距尺度
D.
等比尺度
查看完整题目与答案
【单选题】设函数 ,则下列说法正确的是( )
A.
在区间 上递增
B.
在区间 上递减
C.
在 处取到极小值
D.
在 处取到极大值
查看完整题目与答案
【单选题】设函数 满足微分方程 ,且 ,则对函数 的下列说法正确的是( ).
A.
在x 0 处取得极大值
B.
在x 0 的某邻域内单调增加
C.
在x 0 处取得极小值
D.
在x 0 的某邻域内单调减小
查看完整题目与答案
【单选题】The police station asks for public help because______.
A.
ordinary people like the television programme
B.
ordinary people are interested in pictures of paintings, jewellery, etc.
C.
the policemen can not catch the thieves themselves
D.
ordinary people may help the policemen get useful information about the criminals
查看完整题目与答案
【简答题】You change the channels for the fourth time and realize that once again there’s nothing on television that gets your attention. Not a problem! Throw on some running shoes and comfortable clothes and g...
查看完整题目与答案
【简答题】Directions: For this part, you are allowed 30 minutes to write a composition on the topic 'Television' Your composition should be based on your own understanding of the topic and it should be no less ...
查看完整题目与答案
【单选题】B Good evening, ladies and gentlemen, I’m Roy , and this is my show. This is a television show for all families, and I know you’ll enjoy it. Let’s start with a story. Once there was a proud pig on a f...
A.
a family show on TV
B.
for kids only
C.
a sports show
查看完整题目与答案
【单选题】Which of the following is NOT advisable for you?
A.
Drinking water.
B.
Watching less television.
C.
Eating no breakfast.
D.
Eating more grains.
查看完整题目与答案
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