以下检索式,哪个检索结果最多?
A、ti=((straw*orstalk*)andfermentationand(ethanolorbioethanol));
B、ti=((straw*orstalk*)andfermentationand(ethanol*orbioethanol*));
C、ts=((straw*orstalk*)andfermentationand(ethanol*orbioethanol*));
D、ts=((straw*orstalk*)andfermentationand(ethanolorbioethanol))
发布时间:2024-10-22 23:11:32