Reptiles, by drawing their body heat directly from the Sun rather than burning calories to generate it, can survive on ten percent of the nourishment that a mammal of similar size would normally require
A.rather than burning calories to generate it
B.rather than the generation of body heat by burning calories
C.and not from generating it by burning calories
D.instead of by burning calories for generating it
E.instead of body heat generated by burning calories
A 是正解,我的问题是:第一:A它是不是少了个by 呢?要和前面的by drawing 对应啊,或者说 by 是可以省略的吗?我记得好像是不能省略的啊?纠结。。。第二:D 中的错误除了 for generating 错误之外,其他还有错误吗?instead of 是不是必须直接加doing 呢?这个by是不是应该去掉啊。。 |