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【单选题】
时间继电器在电气图中的文字符号是()。A.
KT
B.
FU
C.
KM
D.
FR
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【单选题】一组晶面间距从大到小的顺序:2.02Å,1.43Å,1.17Å,1.01 Å,0.90 Å,0.83Å,0.76 Å......,用波长为λkα=1.54Å的铜靶进行照射,有( )个晶面组能产生衍射。
A.
3
B.
4
C.
5
D.
6
【简答题】试简述补料分批培养的优点
【单选题】Before his death last year, Professor Talline decided that he _________ leave $100,000 to iris university.
A.
can
B.
would
C.
may
D.
shall
【单选题】一组晶面间距从大到小的顺序: 2.02Å , 1.43Å , 1.17Å , 1.01 Å , 0.90 Å , 0.83Å , 0.76 Å ......,用铜靶( 波长为1.54 Å )为进行照射,有 ( ) 个晶面组能产生衍射
A.
2
B.
4
C.
6
D.
8
【简答题】Before his death, ______had gained a position as America s first systematic philosopher.
【单选题】一组晶面间距从大到小的顺序:2.02Å,1.43Å,1.17Å,1.01 Å,0.90 Å,0.83Å,0.76 Å......,用波长为λkα=1.94Å的铁靶照射时,产生衍射的晶面组有( )个。
A.
3
B.
4
C.
5
D.
6
【简答题】Before his death last year, Professor Johnson decided that he ________ leave $ 2,000,000 to his university. A) can B) would C) may D) shall
【单选题】The case of his death is being ________ and will be found out before long. [ ]
A.
looked up
B.
looked for
C.
looked into
D.
looked on
【单选题】一组晶面间距从大到小的顺序:2.02Å,1.43Å,1.17Å,1.01 Å,0.90 Å,0.83Å, 0.76 Å...... 用波长为λkα=1.94Å的铁靶照射时,因λ/2=0.97Å,产生衍射的晶面组有( )个。
A.
2
B.
3
C.
4
D.
5
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