The human genome contains 3 x 109 base pairs of nucleotides, including 140000 genes, if any one of these genes mutate, may lead toits coding protein structure and function unusual, and also cause a kind of important disease, genetic disease.
老师,麻烦您帮我看一下这句话的语...
If he had fought in the First World War, he might have returned ( ). A.a different man B.with a different man C.as a different man D.to be a different man直觉告诉我,选A更合适,可是答案是C。
But a number of scientist are worried that there has been a dangerous rush to declare cell phones safe,using studies they feel are inadequate and too often weighted toward the wireless industry's intereststhey feel…到interests为止应该是studies的定语从句吧,那为按道理studies在定...
前面有个问题是关于 look like 中有无 like 的区别。另一个相关的问题也不好区分,那就是系动词 look 后面接 being 与 to be 的区别。比较:He looks being very strong.He looks to be very strong.哪句对?或都对?有依据吗?谢谢!