)14.___and___are mammals. They give birth to A. Whales; dolphinsB. Fish; henC. Coconuts; water 相关知识点: 试题来源: 解析 A. Whales; dolphins 本题要求选择两种哺乳动物。哺乳动物的特征是产乳喂养幼仔。鲸鱼和海豚都是哺乳动物,它们都产乳喂养幼仔。鱼和母鸡都不是哺乳动物,它们产卵而不是产乳...
根据短文内容及首字母提示,填写所缺单词,使短文意思完整There are about 76 different kinds of whales and dolphins around the world. Though they live in water, whales and dolphins are not 1. f They are warm-blooded mammals (哺乳 物), like cats, dogs and humans. They are viviparous (胎的)an...
Dolphins, Whales Aremammalswithout Legs
Dolphins are small whales and they live in the sea. They may look like fish, but they are not fish. They are mammals(哺乳动物)like us. An adult dolphin is usually about 3 to 4 years old, 2 metres long and weighs about 150 kg to 200 kg. Some can weigh up to 450 kg. Dolphins ...
Dolphins Dolphins are small whales and they live in the sea.They may look like fish, but they're not. They are mammals like us. An adult dolphin is usually about 3 to4. 2 metres long and weighs about 150 ~200 kg. Some can weigh up to 450 kg. Dolphins are super swimmers.They can...
(1)C.细节理解题.根据第一段"Whales, like dolphins, belong to a group of mammals (哺乳动物) called "cetaceans". 鲸鱼和海豚一样,属于一种叫做"鲸类"的哺乳动物."可知鲸鱼属于鲸目动物科.故选C.(2)B.细节理解题.根据第一段"Fish have vertical(垂直的) tail fins(鳍), but whales have horizontal ...
Dolphins are small whales and they live in the sea. They may look like fish, but they're not. They are mammals like us. An adult dolphin is usually about 3 to 4.2 metres long and weighs about 150 to 200 kilograms. Some can weigh up to 450 kilograms. Dolphins are super swimmers. The...
百度试题 结果1 题目Which of the following living things are mammals(哺乳动物)? A. Whales B. Pigeons C. Spiders D. Crocodiles 相关知识点: 试题来源: 解析 A 题意“下列哪种生物是哺乳动物?”Whales:鲸鱼,胎生动物,属于哺乳动物。反馈 收藏 ...
Dolphins(海豚)are small whales and they live in the sea. They may look like fish, but they are not. They are mammals(哺乳动物)like us. An adult dolphin is usually about 3 to 4.2 metres long and weighs(称重)up to 450 kg. Dolphins are good swimmers. They can swim at 50 kilometres ...