单选题 The laser represents a true marriage between science and technology, the men who devised it were______engineers and physicists.
A. spontaneously B. simultaneously
C. instantaneously D. homogeneously

【正确答案】 B

【答案解析】[解析] 本题空格处是说这人是位工程师，同时又是位物理学家。simultarleously的意思是“同时”，符合题意。如：This event was almot simultaneous with that one．(这件事几乎是与那件事同时发生的。)其他三项“spontaneously自发地，本能地；instantane ously瞬间地；homogeneously相似地”都不正确。