题目

关于原核细胞和真核细胞，下列说法错误的是（ ）A.蓝藻细胞内含有藻蓝素和叶绿素，是能进行光合作用的自养生物B.原核细胞膜与真核细胞膜均主要由磷脂和蛋白质构成，但真核多细胞生物细胞膜蛋白质的种类和数目较原核细胞多C.在生命起源和进化过程中，原核细胞比真核细胞出现得早D.原核生物既有自养生物，又有异养生物；真核生物也是如此My parents expected too much of me. When they heard that I had failed in the college entrance examination, they almost _____. A. broke up B. broke offC. broke outD. broke down