题目内容

1 Norwegian/Swedish mil or myriametre = ________ meters.

A. 1,000
B. 3,000
C. 5,000
D. 10,000

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1 angström = _____picometers.

A. 10
B. 50
C. 100
D. 1,000

1angström=_____ meters.

A. 10^-6
B. 10^-8
C. 10^-10
D. 10^-12

1 xu of X ray = _______picometer.

A. 0.01
B. 0.1
C. 1
D. 10

IncommonImperialandUScustomaryunitsoflength,1point(p)=__________mm.

A. 127/3,600
B. 127/1,800
C. 127/360
D. 127/180

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