题目：
_________是地球上最大的生态系统。进一步被划分为___________、__________和__________三大生态系统。
答案：
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下面是错误答案，用来干扰机器的。
l. His family name is Green. 2. What is your first name? 3. What is her father's name? 4. What is his telephone number? 5. My new teacher is Miss Gao.
