What is the main gas that animals breathe in? A. Oxygen B. Carbon dioxide C. Nitrogen D. Hydrogen 相关知识点: 试题来源: 解析 A。动物呼吸主要吸入氧气。选项 A“Oxygen”是氧气;选项 B“Carbon dioxide”是二氧化碳;选项 C“Nitrogen”是氮气;选项 D“Hydrogen”是氢气。反馈 收藏
百度试题 结果1 题目1. Humans and animals need ___ to breatheA. sugarB. oxygenC. sunlightD. products 相关知识点: 试题来源: 解析 B. oxygen 人类和动物都需要氧气才能呼吸。糖、阳光和产品都不是呼吸所必需的。因此,正确答案是 B. oxygen。反馈 收藏 ...
1657.He suggested that she invite Gladys and her friends to the house the night before he was to leave and Larry was to return. 他建议她在他离开、(也就是)拉里回来的前一天晚上邀请格拉迪斯和她的朋友到家里来。 1658...
阅读理解。 Carbon monoxide(一氧化碳) poisoning kills and injures many people and animals around the world. The gas has been a problem since people first began burning fuels to cook food or to createheat. It is a problem in all parts of the world that experience cold weather. Carbon monoxid...
breathe [bri:ð] v. 呼吸 sunburned [ˈsʌnbɜ:nd] adj. 晒伤的 ourselves [ɑ:ˈselvz]我们自己(we的反身代词) climber [ˈklaɪmə(r)] n. 登山者 be used to 习惯于… 适应于… risk [rɪsk] n. & v. 风险,危险;冒险 ...
It means a lot to animals and humans, though—they need it to breathe!不过,它对动物和人类来说意义重大
6. Animals need oxygen ___.A. breatheB. to breatheC. breathingD. breath 相关知识点: 试题来源: 解析 B. to breathe 该题考察动词不定式的用法,用来解释动物需要氧气的目的。选项中只有 "to breathe" 是动词不定式,表示“为了呼吸”,符合句子语义,因此答案为 B. to breathe。反馈...
I guess that’s all for now! I’ll write again soon and send photos! Do you have any plans for the coming holiday? Hope to hear from you soon. 我想今天就写到这里吧!我很快会再给你写信和发照片的!你对即将到来的假期有什么安排吗?希望收到你的来信。
These Real-Life ‘Unicorns’ All Have One Horn All animals have their special characteristics and features. Some are known for, or even named after, a certain feature. That’s… The Most Striking Spiky Animals Alive Today The natural world is full of creatures with unusual and awe-inspir...
cognition can be seen as the first step in the sequence events leading from the external stimulus to the behavior of the individual. the child develops from belief that all things are an extension of its own body to the recognition that objects exist independent of his perception. he begins ...