單項選擇題It was Dr. Rontgen who （） X-rays.

A.discovered
B.invented
C.made up


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1.單項選擇題There is （） information on how to get the cheap fears.

A.few
B.afew
C.little

2.單項選擇題They decided to （） into the cause of the accident.

A.see
B.look
C.watch

3.單項選擇題This is one of the most important things （） all.

A.among
B.in
C.of

4.單項選擇題Tom is a person who always （） up to dangers.

A.meets
B.faces
C.sees

5.單項選擇題He worked in this company （） several years.

A.in
B.since
C.for