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【单选题】
用Ce4+标准滴定溶液滴定Fe2+应选择( )A.
pH玻璃电极
B.
银电极
C.
氟离子选择性电极
D.
铂电极
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【简答题】S7-200系列PLC的存储单元有 、 、 和 四种编址方式。
【简答题】Select the most appropriate statement. (1)( ) The issuing bank must use an advising bank. (2)( ) The issuing bank may use an advising bank. (3)( ) Single window credit is not acceptable. (4)( ) No...
【单选题】Mother was proud that her daughter looked ________ among the girls in the party that evening.
A.
less beautiful
B.
the most beautiful
C.
more beautiful
D.
evenbeautiful
【单选题】Mother always told him to _______ fire.
A.
keep up with
B.
keep out
C.
C keep away
D.
D keep away from
【单选题】If the reimbursement instruction written on the payment order is expressed as ‘in cover, please debit our A/C with you’, the A/C relationship between the remitting bank and the paying bank must be ( ...
A.
the paying bank maintains an A/C with remitting bank
B.
the remitting bank maintains an A/C with paying bank
C.
both remitting bank and paying bank maintain their A/Cs with a third bank
D.
remitting bank and paying bank have their A/Cs with two different bank
【单选题】Mother didn't tell me ______
A.
A if you will see me off at the station
B.
whether you will see me off at the station
C.
C if you would see me off at the station
D.
that you will see me off at the station
【单选题】Tommy：Mommy，when will we have dinner?I‘m starvin9． Mother：__________．We have to wait for Daddy．
A.
Soon，honey
B.
Quickly，honey
C.
OK，honey
D.
All right，honey
【简答题】简述玻尔理论对原子结构认识的贡献和玻尔理论的地位与不足 .
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