以下是一份包含五个问题的中文测试题： 一、以下哪个动物是哺乳动物？ 1.鸽子 2.青蛙 3.狗 4.蛇 二、以下哪个水果生长在热带地区？ 1.苹果 2.香蕉 3.梨 4.芒果 三、以下哪个国家是中国的主要贸易伙伴？ 1.美国 2.日本 3.韩国 4.澳大利亚 四、以下哪个城市是上海的姐妹城市？ 1.巴黎 2.东京 3.纽约 4.伦敦 五、以下哪个节日是中国的新年？ 1.圣诞节 2.清明节 3.元旦 4.端午节 请注意，以上问题的答案分别为：3、4、2、1、3。 1. Which of these animals is a mammal? 1. Pigeons 2. Frogs 3. Dogs 4. Snakes Which of these fruits grows in the tropics? 1. Apple 2. Bananas 3. Pears 4. Mango Which of the following countries is China's main trading partner? 1. United States 2. Japan 3. South Korea 4. Australia Which of the following cities is a sister city of Shanghai? 1. Paris 2. Tokyo 3. New York 4. London Which of the following festivals is the Chinese New Year? 1. Christmas 2. Qingming Festival 3. New Year's Day 4. Dragon Boat Festival Please note that the answers to the above questions are: 3, 4, 2, 1, 3.