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【单选题】
已知 E Ө (Sn 4+ /Sn 2+ ) = 0.15 V , E Ө (Fe 3+ /Fe 2+ ) = 0.77 V , E Ө (Cu 2+ /Cu) = 0.34 V ,判断在标准状态下,下列反应能自发进行的是
A.
2Fe 3+ + Sn 2+ ® 2Fe 2+ + Sn 4+
B.
Cu + Sn 4+ ® Cu 2+ + Sn 2+
C.
2Fe 2+ + Sn 4+ ® 2Fe 3+ + Sn 2+
D.
Cu 2+ + Sn 4+ ® Cu + Sn 2+
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【单选题】在8086系统中,用 BP 作基址变址寻址时,操作数所在的段是当前的________。
A.
数据段
B.
代码段
C.
堆栈段
D.
附加段
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【单选题】听力原文：W: Professor Smith suggested that I come here to borrow a Longman Dictionary of Contemporary English. M: You're welcome to use our dictionaries,but they must not be taken out of the library.Would...
A.
Buy a dictionary for herself.
B.
Take a dictionary out of the library.
C.
Use whatever dictionaries in the library.
D.
Borrow a dictionary from Professor Smith.
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【单选题】用BP作基址变址寻址时,操作数所在的段是当前 ( )。
A.
代码段
B.
数据段
C.
附加段
D.
堆栈段
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【判断题】网络组织只有少数精干成员,只能完成一些简单的小项目。 ( )
A.
正确
B.
错误
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【简答题】I suggested they do some experiments, or at least a _______ (调查).
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【简答题】Combining the two sentences into one by using the adverbial clause.用条件状语从句合并句子 1. I reached the station. The train had already left. (时间状语从句) 2. I reached the station. The train was pulling out. (时间状语...
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【简答题】有 NFA 定义如下: N=(S={0 , 1} , S ={a , b} , s 0 =0 , F={0} , move={ move(0,a)=0 , move(0,a)=1 , move(0,b)=1 , move(1,a)=0} )。 ( 1 )画出 N 的状态转换图; ( 2 )构造 N 的最小 DFA M ; ( 3 )给出 M 所接受语言的正规式描述; ( 4 )举出语言中的三个串,...
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【简答题】A survey suggested that more than two-thirds of Chinese tourists said they used their smartphones to pay abroad and nearly 60% of surveyed merchants saw growth in revenue after adopting Chinese mobile...
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【单选题】I suggested they do some experiments, or at least a survey .(选近义词)
A.
security
B.
investigation
C.
introduction
D.
invitation
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【简答题】I was deeply shocked by a recent survey that suggested 30 per cent of job applicants embellished the truth or lied on a curriculum vitae. Can the figure really be that low? (1) I had always assumed CV...
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【单选题】在8086系统中,用 BP 作基址变址寻址时,操作数所在的段是当前的________。
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【单选题】听力原文：W: Professor Smith suggested that I come here to borrow a Longman Dictionary of Contemporary English. M: You're welcome to use our dictionaries,but they must not be taken out of the library.Would...
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【简答题】I suggested they do some experiments, or at least a _______ (调查).
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查看完整题目与答案
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