皮皮学，免费搜题
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【单选题】
下列氢氧化物中,不能被空气氧化的是A.
Fe(OH) 2
B.
Co(OH) 2
C.
Ni(OH) 2
D.
Mn(OH) 2
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参考解析：
知识点：
皮皮学刷刷变学霸
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【单选题】Directions: Identify the run-on in each selection. If the selection contains no run-on, choose "Correct." a. I saw many adorable kittens and puppies at the animal shelter. b. I am allergic to fur I ad...
A.
a
B.
b
C.
c
D.
Correct
【简答题】adj. 巨大的,庞大的
【单选题】Identify the run-on in each selection. If the selection contains no run-on, choose "Correct."
A.
I saw many adorable kittens and puppies at the animal shelter.
B.
I am allergic to fur I adopted a turtle instead.
C.
A turtle, however, is not very cuddly.
D.
Correct
【简答题】adj. 巨大的,极好的
【单选题】Directions: Identify the run-on in each selection. If the selection contains no run-on, choose "Correct."
A.
I saw many adorable kittens and puppies at the animal shelter.
B.
I am allergic to fur I adopted a turtle instead.
C.
A turtle, however, is not very cuddly.
D.
Correct
【单选题】实验现象表明，二次电子的产生机制与气压和气隙长度的乘积（pd ）有关。pd值较小时自持放电的条件可用（）来说明；pd值较大时则要用流注理论来解释。
A.
汤逊理论
B.
汤姆理论
C.
汤莱理论
D.
约翰理论
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