The knowledge that scientists know about dinosaur branis comes from studies of the bony house of the brain,located in the back of the skull,that is,the cranium.
(PREP1SC2-6-B)
姑且不说the knowledge that scientists know表达不简洁,单就划线部分的过去分词短语的修饰对象,我有如下问题:
应该没有修饰不清,因为今天看到og的一刀题目 og12078.Fossils of the arm of a sloth, found in Puerto Rico in 1991,have been dated at 34 million years old, making the sloth the earliest known mammal on the Greater Antilles Islands.