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【单选题】
25 °C时,相同物质的量浓度的下列溶液,其中水的电离程度最小的是A.
NaCl
B.
NaOH
C.
(NH 4 ) 2 SO 4
D.
H 2 SO 4
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举一反三
【单选题】The lions in the Gir Forest are especially vulnerable to disease because______.
A.
they have descended from a dozen or so ancestors
B.
they are smaller than the African lions
C.
they do not have enough to eat
D.
they are physically weaker than the African lions
【单选题】The lions in the Gir Forest are especially vulnerable to disease because they______.
A.
have descended from a dozen or so ancestors
B.
are smaller than the African lions
C.
do not have enough to eat
D.
are physically weaker than the African lions
【简答题】all( )
【单选题】The gir is smart and clever; __________.
A.
so is her brother
B.
so does her brother
C.
so his brother does
D.
so his brother is
【单选题】温度测量仪表按测温方式可分为（）。
A.
接触式测温仪表、非接触式测温仪表
B.
高温测温仪表、低温测温仪表
C.
液柱测温仪表、红外测温仪表
D.
物理式测温仪表、化学式测温仪表
【简答题】温度测量仪表可分为（）测温仪表和（）测温仪表两大类。
【单选题】The lions in the Gir Forest are especially vulnerable to disease because they ______.
A.
have descended from a dozen or so ancestors
B.
are smaller than the African lions
C.
do not have enough to cat
D.
are physically weaker than the African lions
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