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【单选题】
在沉淀滴定法中，同时都要用到AgNO3和NH4SCN两种滴定液的方法是A.
铬酸钾指示剂法
B.
铁铵矾指示剂法
C.
吸附指示剂法
D.
NaOH水解法
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举一反三
【单选题】Choose the best answer to the following question. 13) There used to be an old city here, which was ________ under the river about 2000 years ago.
A.
insulated
B.
interrupted
C.
insulted
D.
buried
【单选题】The primary school was _____ where there used to be an old temple.
A.
set up
B.
put up
C.
built up
D.
held up
【单选题】There used to be an old temple on the top of the mountain, ______?
A.
was it
B.
wasn't it
C.
did there
D.
didn't there
【单选题】There used to be an old temple in the city,________?
A.
didn’t there
B.
wasn’t there
C.
usedn’t there
D.
usedn’t to there
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