inbacteriaandinotherorganism,isthenucleiacidDNAthatprovidesthatgeneticinformationAbothBwhichCandDit为什么选第四个呢?B为什么不对?

Question

in bacteria and in other organism,__is the nuclei acid DNA that provides that genetic information
A both B which C and D it
为什么选第四个呢?B为什么不对?

Answer 1

典型的 it is…… that ……句型.是要求熟练掌握的.
先给你翻译一下句子的意思吧,在微生物和其他有机体内,DNA都是遗传信息的载体.句子的主语是:nuclei acid DNA ,若果用which,那句子就成了in bacteria and in other organism,whichis the nuclei acid DNA that provides that genetic information.你仔细看,which在句子中做什么成分呢?而且句子的意思翻译不通,而且在这里which也引导不了定语从句