【判断题】【消耗次数：1】
永停滴定法使用的是两个相同的指示电极。
①
正确
②
错误
参考答案：
复制
纠错
相关题目
【单选题】
在永停滴定法中，当电极间有电流通过时候，则下列说法正确的是（ ）
①
电流达到最大时，其氧化型与还原型的浓度相同
②
这是一个不可逆电对
③
电流达到最大时，其氧化型的浓度等于零
④
电流达到最大时，其还原型的浓度等于零
【单选题】
在永停滴定法中，用I2标准溶液滴定Na2S2O3试液（ ）
①
滴定剂属可逆电对，被测物属不可逆电对
②
滴定剂属不可逆电对，被测物属可逆电对
③
滴定剂与被测物均属不可逆电对
④
滴定剂与被测物均属可逆电对；
【单选题】
在永停滴定法中，用Na2S2O3滴定I2，在滴定过程中，随着滴定剂的加入（
①
电解电流受[I-]控制，不断增大
②
没有电解电流产生
③
电解电流受[I-]控制，先增大后减小
④
电解电流恒定不变；
随机题目
【单选题】
《关于建国以来党的若干历史问题的决议》对毛泽东的评价不包括（）。
①
A 毛泽东同志是伟大的马克思主义者
②
B 毛泽东同志是伟大的无产阶级革命家
③
C 毛泽东同志是伟大的无产阶级战略家和理论家
④
D 毛泽东同志是中国伟大的爱国者和民族英雄
【单选题】
He had a cottage which consists _____ three rooms, a bathroom and kitchen.
①
of
②
with
③
in
④
by
【单选题】
____ the diamond, he had to look for a place to hide it.
①
Having stolen
②
Having been stolen
③
Stolen
④
Stealing
【单选题】
In January, 2004, the United States successfully launched “Spirit”, a Mars Exploration Rover（火星控测飞行器）, ____ a new milestone（里程碑）in the history of mankind.
①
it marked
②
marking
③
marked
④
to mark
【单选题】
The dog, ____, will be made a good watchdog.
①
to train properly
②
being trained properly
③
properly to train
④
trained properly
【单选题】
The old farmer, ____ the badly injured and burnt soldier, came out of the burning farmhouse, calling continuously for help.
①
supporting
②
having supported
③
being supported by
④
being supported
【单选题】
____ the front door ____, he had to enter the room through the back door.
①
Seen; painted
②
Seeing; painted
③
Being seen; being painted
④
Seeing; being painted
【单选题】
When he was a boy, he used to go there and watch ____.
①
to repair bicycles
②
bicycles to be repaired
③
bicycles being repaired
④
repairing bicycles
【单选题】
—Have you considered ____ your job as a teacher? —Yes. I like the job because a teacher is often considered a gardener.
①
?to change; to be
②
?to change; being
③
?changing; being
④
?changing; to be