在线名词解释大全 - 中国文化英语学习 - 详细

Whichofthefollowingwordsisasynonymof“spontaneously”in“WhentheywereusingPotassiumNitrateandSulphurtotryandcreatetheirelixir,theyfoundthatitwouldactuallyignitespontaneously.”?

A
naturally
B
 instinctively
C
fixedly
D
regularly 
正确答案:
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