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【多选题】
在房地产估价活动中对房地产估价师的要求,正确的有( )。A.
同一估价项目应至少选派2名注册房地产估价师共同进行估价
B.
估价项目负责人应为注册房地产估价师
C.
除批量估价外，每个估价项目应至少有1名注册房地产估价师全程参与估价工作
D.
房地产估价师不得承接超出自已专业胜任能力的估价业务
E.
房地产估价师可以在非自已估价的房地产估价报告上签名
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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】.—What should we do to protect the fish in the river? —We throw rubbish into the river.
A.
mustn’t
B.
have to
C.
must
D.
needn’t
【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：
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