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【单选题】
世界卫生组织对BMI的健康建议中体重过重是指()
A.
BMI小于18.5
B.
BMI介于18.5---24.9之间
C.
BMI介于25.0---30之间
D.
大于30
E.
以上均正确
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【单选题】It costs about _______ times as much to attract a new customer as it costs to keep an old one.
A.
two
B.
three
C.
four
D.
five
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【单选题】渼陂送神的日子为二月初二。送神前 ( )天开始游神,进入祭神高潮
A.
2
B.
4
C.
5
D.
3
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【单选题】下列哪个零件可以不借助工具拆卸( )。
A.
机油尺套管
B.
点火高压线
C.
节气门
D.
机油滤清器
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【单选题】佛尔哈德法返滴定测Iˉ时,指示剂必须在加入过量的AgNO3 溶液后才能加入,这是因为( )
A.
AgI 对指示剂的吸附性强
B.
AgI 对Iˉ的吸附强
C.
Fe 3+ 氧化Iˉ
D.
终点提前出现
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【判断题】It costs about five times as much to get a new customer as it does to keep an existing customer.
A.
正确
B.
错误
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【单选题】佛尔哈德法返滴定测I一时,指示剂必须在加入AgNO3溶液后才能加入,这是因为( )。
A.
AgI对指示剂的吸附性强
B.
AgI对I一的吸附性强
C.
Fe3十能将I一氧化成I2
D.
终点提前出现
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【单选题】In his example the author tells his readers that ______.
A.
it is important to build up one's physical capacity
B.
it is no good having much physical training
C.
it is more important to know one's capacity than to win the race
D.
it is important to have physical training while one trains his mind
查看完整题目与答案
【单选题】From the last paragraph we know that in Brazil______.
A.
it is important to arrive at the appointed time
B.
it is rude for professors to be late for class
C.
it is normal for students to leave during lectures
D.
it is natural to keep the professor staying after class
查看完整题目与答案
【单选题】佛尔哈德法返滴定测I一时，指示剂必须在加入AgNO3溶液后才能加入，这是因为( )。
A.
AgI对指示剂的吸附性强
B.
AgI对I-的吸附性强
C.
Fe3+能将I-氧化成I2
D.
终点提前出现
查看完整题目与答案
【单选题】佛尔哈德法返滴定测I一时,指示剂必须在加入AgN03溶液后才能加入,这是因为( )。
A.
AgI对指示剂的吸附性强
B.
AgI对I-的吸附性强
C.
Fe3+能将I-氧化成I2
D.
终点提前出现
查看完整题目与答案
相关题目：
【单选题】It costs about _______ times as much to attract a new customer as it costs to keep an old one.
A.
two
B.
three
C.
four
D.
five
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【单选题】渼陂送神的日子为二月初二。送神前 ( )天开始游神,进入祭神高潮
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【单选题】下列哪个零件可以不借助工具拆卸( )。
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B.
点火高压线
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【单选题】佛尔哈德法返滴定测Iˉ时,指示剂必须在加入过量的AgNO3 溶液后才能加入,这是因为( )
A.
AgI 对指示剂的吸附性强
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D.
终点提前出现
查看完整题目与答案
【判断题】It costs about five times as much to get a new customer as it does to keep an existing customer.
A.
正确
B.
错误
查看完整题目与答案
【单选题】佛尔哈德法返滴定测I一时,指示剂必须在加入AgNO3溶液后才能加入,这是因为( )。
A.
AgI对指示剂的吸附性强
B.
AgI对I一的吸附性强
C.
Fe3十能将I一氧化成I2
D.
终点提前出现
查看完整题目与答案
【单选题】In his example the author tells his readers that ______.
A.
it is important to build up one's physical capacity
B.
it is no good having much physical training
C.
it is more important to know one's capacity than to win the race
D.
it is important to have physical training while one trains his mind
查看完整题目与答案
【单选题】From the last paragraph we know that in Brazil______.
A.
it is important to arrive at the appointed time
B.
it is rude for professors to be late for class
C.
it is normal for students to leave during lectures
D.
it is natural to keep the professor staying after class
查看完整题目与答案
【单选题】佛尔哈德法返滴定测I一时，指示剂必须在加入AgNO3溶液后才能加入，这是因为( )。
A.
AgI对指示剂的吸附性强
B.
AgI对I-的吸附性强
C.
Fe3+能将I-氧化成I2
D.
终点提前出现
查看完整题目与答案
【单选题】佛尔哈德法返滴定测I一时,指示剂必须在加入AgN03溶液后才能加入,这是因为( )。
A.
AgI对指示剂的吸附性强
B.
AgI对I-的吸附性强
C.
Fe3+能将I-氧化成I2
D.
终点提前出现
查看完整题目与答案