【正确答案】 A

【答案解析】 referred to sth. as 是个固定短语，把。。。看成是。。。本句是个倒装句，非倒装句是：refer to the rock as the matrix. D选项中的being是多余的， 因为refer to ..as中，as 已经包含了being 的意义。 a. as the matrix b. be the matrix c. by scientist to be the matrix d. as being the matrix