“All matter is in motion and change, Mr. Andersen, a chemistry teacher, said to his student——青夏教育精英家教网—

摘要： “All matter is in motion and change, Mr. Andersen, a chemistry teacher, said to his students. A. sensitive B. constant C. slow D. plenty

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_____the beginning of the 19^th century did scientists know that all matter is made up of atoms.
A,At B,By C,Up to D,Not until

Most people are familiar with the idea that all matter in the universe ________ atoms.

A．makes up B．makes up of C．consists in D．consists of

Most people are familiar with the idea that all matter in the universe ________ atoms.

A．makes up

B．makes up of

C．consists in

D．consists of

_____the beginning of the 19^th century did scientists know that all matter is made up of atoms.

A,At B,By C,Up to D,Not until

.______ the beginning of the 19th century did scientists know that all matter is made up of atoms.

A. At B. By C. Up to D. Not until

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