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【单选题】
在吸收操作过程中，任一组分的吸收因子A与其吸收率φi在数值上相应是( )。A.
Ai＜φi
B.
Ai=φi
C.
Ai＞φi
D.
以上三种情况均有可能
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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。
【单选题】Mother ______________ (fall) asleep when I came back last night.
A.
had fallen
B.
falls
C.
has falled
D.
falled
【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】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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