题目

阅读理解 China is a land of bicycles．At least it was back in 1992 when I traveled the country．Back then everyone seemed to be riding a bicycle．Millions of them，all black．Cars were rare．Yet since my arrival in Beijing last year, I've found the opposite is true．There are millions of cars．However, people still use their bicycles to get around．For many, it's the easiest and cheapest way to travel today．Bicycles also come in different colors—silver, green, red, blue，yellow, whatever you want． It's fun people biking．They rush quickly through crossroads, move skillfull植物细胞和动物细胞都有的结构是①细胞壁 ②细胞膜 ③细胞质 ④液泡 ⑤细胞核 ⑥叶绿体A. ①②③ B. ②③⑥ C. ①③⑤ D. ②③⑤