题目内容

A sheet of newspaper is about _________ nanometers thick.

A. 50,000
B. 80,000
C. 100,000
D. 120,000

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To give you an idea of how small that is, it would take ____ hundred 100 nanometer particles side by side to match the width of a human hair.

A. 3
B. 5
C. 7
D. 8

At9th-17thcenturies,glowing,glittering"luster"ceramicglazesusedintheIslamicworld,andlaterinEurope,containedsilveror________orothermetallicnanoparticles.

A. magnesium
B. gold
C. copper
D. iron

In ______, Erwin Müller, working at Siemens Research Laboratory, invented the field emission microscope, allowing near-atomic-resolution images of materials.

A. 1926
B. 1932
C. 1936
D. 1946

In _____, Victor La Mer and Robert Dinegar developed the theory and a process for growing monodisperse colloidal materials. Controlled ability to fabricate colloids enables myriad industrial uses such as specialized papers, paints, and thin films, even dialysis treatments.

A. 1940
B. 1945
C. 1950
D. 1955

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