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【多选题】
配位滴定反应必须具备的条件有A.
配位反应速率要快
B.
配位反应按一定的化学反应式定量进行,且反应完全
C.
滴定过程中生成的配合物可溶
D.
形成的配合物要有足够的稳定性
E.
要有适当的方法指示滴定终点
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【单选题】—When will you leave for London, Mr. Smith ? —I can’t tell. I have sent my father to ______ when the plane takes off and get me a ticket. [ ]
A.
find
B.
look
C.
look for
D.
find out
【简答题】An application form. will be sent to you_____ 。 A,on request B.on a request C.in request
【单选题】This nurse was ______ when you were sent to the hospital.
A.
in turn
B.
in practice
C.
on duty
D.
on business
【简答题】A．pressures B．depressions C．tensions D．stresses
【单选题】Inplanestresscondition ,the plane where the principal stresses locate is
A.
the plane with extreme shear stress.
B.
the plane with extreme shear and normal stresses
C.
the plane with extreme normal stress.
D.
the plane without extreme shear and normal stresses.
【简答题】When you meet someone for the first time, you will form an impression in your mind of that person in the first moment. Your reactions to other people, however, are really just barometers (晴雨表) for how...
【单选题】In 1704, ___________founded the periodicals “the Review”.
A.
Swift
B.
Blake
C.
Milton
D.
Defoe
【单选题】Whom should the application form. be sent to if you want to apply for SAL FFP Membership?
A.
SAL FFP Club.
B.
The SAL ticket office.
C.
The SAL headquarters.
D.
SAL Customer Service Center.
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