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【简答题】
()是操作系统中人机交互的基本工具。
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反馈参考答案：
举一反三
【简答题】符号3p表示主量子数为 ，角量子为 ，原子轨道形状为 ，在3p轨道上的电子处于第 电子层，第 亚层。
【简答题】世界上第1个与新中国建交的国家是:
【单选题】逻辑函数Y=A(B⊕C)+B(A⊙C)的最简与非式为( )
A.
((AC)’(BC’)’)’
B.
((AB’C’)’(ABC)’(A’BC)’(ABC’)’)’
C.
((AC’)’(BC)’)’
D.
((AB’C)’(ABC’)’(A’BC’)’(ABC)’)’
【多选题】How does the author behave when she is suddenly confronted with real live humans?
A.
She gets overexcited.
B.
She speaks too little.
C.
She would not wait patiently until others finish their sentences.
D.
She finds herself shyer.
【多选题】How does the author behave when she is suddenly confronted with real live humans?
A.
she gets overexcited.
B.
she becomes angry.
C.
she becomes talkative.
D.
she tends to interrupt others.
【简答题】磷酸亚铁锂( LiFePO 4 )可用作锂离子电池正极材料,具有热稳定性好、循环性能优良、安全性高等特点,文献报道可采用 FeCl 3 、 NH 4 H 2 PO 4 、 LiCl 和苯胺等作为原料制备。回答下列问题: ( 1 )在周期表中,与 Li 的化学性质最相似的邻族元素是 ________ ,该元素基态原子核外 M 层电子的自旋状态 _________ (填 “ 相同 ” 或 “ 相反 ”...
【多选题】How does the author behave when she is suddenly confronted with real live humans?
A.
She got overexcited.
B.
She feels more cautious.
C.
She feels more anxious.
D.
She feels shyer.
E.
She speaks too much.
F.
She interrupts others.
【单选题】根据以下内容，回答下列各题。 When the author was young, he thought that____________
A.
by dreaming people could live a better life indeed
B.
he was puzzled by the mysterious quality of dreams
C.
it was astonishing that adults loved holidays so much
D.
it was a pity that adults could not enjoy dreams
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