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

A.discovered
B.invented
C.made up


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

A.few
B.afew
C.little

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

A.see
B.look
C.watch

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

A.among
B.in
C.of

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

A.meets
B.faces
C.sees

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

A.in
B.since
C.for