非水碱量法采用的滴定指示液是A.酚酞B.碘化钾-淀粉C.溴麝香草酚蓝D.
非水碱量法采用的滴定指示液是
A.酚酞
B.碘化钾-淀粉
C.溴麝香草酚蓝
D.结晶紫
E.邻二氮菲
非水碱量法采用的滴定指示液是
A.酚酞
B.碘化钾-淀粉
C.溴麝香草酚蓝
D.结晶紫
E.邻二氮菲
第1题
She ______ soon after dark and arrived home an hour later.
A、had set out
B、set out
C、have set out
D、had been set out
第2题
The doctor assured Susan that the pain would ______ one hour after she took the medicine.
A.wear out
B.wear down
C.wear away
D.wear on
第3题
The doctor assured Susan that the pain would ______one hour after she took the medicine.
A.wear out
B.wear down
C.wear away
D.wear on
第4题
The doctor assured Susan that the pain would ______ one hour after she took the medicine.
A.wear out
B.wear down
C.wear away
D.wear on
第5题
A.So as to
B.As soon as
C.Soon after
D.Sooner or later
第6题
After the guests left, she spent half an hour _______ the sittingroom.
A) ordering B) arranging C) tidying up D) clearing away
第7题
She comes home for lunch after class.
A.True
B.False
第8题
To review notes soon after class is more effective than to do it later on.
A.Y
B.N
C.NG
第9题
With the guide ______ the way, we set out on foot into the dark night.
A.lead
B.leading
C.led
D.to lead
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