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] simultaneously同时；spontaneously自发地，本能地；instantaneously瞬间地：homogeneously相似地。
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