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【判断题】
“八个明确”是指导思想层面的表述，重点讲的是怎么看，回答的是新时代坚持和发展什么样的中国特色社会主义的问题；“十四个坚持”是行动纲领层面的表述，重点讲的是怎么办，回答的是新时代怎样坚持和发展中国特色社会主义的问题。A.
正确
B.
错误
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【单选题】CaC 2 O 4 的 K sp = 2.6 ́ 10 -9 , 在含 0.020 mol·dm -3 Ca 2+ 的溶液中形成沉淀时 , 所需 离子浓度至少应为 ( )
A.
1.1 ´ 10 -9 mol·dm -3
B.
1.3 ´ 10 -7 mol·dm -3
C.
2.2 ´ 10 -5 mol·dm -3
D.
2.2 ´ 10 -7 mol·dm -3
【单选题】The river fish has been pulluted.
A.
was full of
B.
was filled with
C.
full with
D.
filled with
【单选题】So ____ that no fish can live in it.
A.
the river is shallow
B.
shallow the river is
C.
shallow is the river
D.
is the river shallow
【单选题】CaC 2 O 4 ( K sp =2.32 ×10 -9 )在 0.1 mol × L -1 的 CaCl 2 溶液中的溶解度为( )
A.
4.81 ×10 - 5 mol × L -1
B.
1.32 ×10 - 3 mol × L -1
C.
8.34 ×10 - 4 mol × L -1
D.
2.32 ×10 - 8 mol × L -1
E.
1.16 ×10 - 8 mol × L -1
【单选题】CaC 2 O 4 的 K sp 为 2.6×10 - 9 ,要使 0.020 mol.dm - 3 CaCl 2 溶液生成沉淀,需要的草酸根离子浓度是 ( )
A.
1.3×10 － 7 mol.dm － 3
B.
1.0×10 － 9 mol.dm － 3
C.
5.2×10 － 10 mol.dm － 3
D.
2.2×10 － 5 mol.dm － 3
【单选题】Not until the fish died in the river how serious the pollution was.
A.
did the villagers realize
B.
the villagers realized
C.
the villagers did realize
D.
didn’t the villagers realize
【简答题】Sometimes in the afternoon, I, together with my cousins, went to the river to fish.
【简答题】连词成句，我最棒！ 1. a live does where zebra ? 2. is judge a the monkey . 3. lives the river fish in a . 4. live a does a snake in hole ? 5. animal ...
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【单选题】The river fish has been pulluted.
A.
was full of
B.
was filled with
C.
full with
D.
filled with
参考解析：
知识点：
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