A jellyfish has a soft body. It floats in the water. What is a jellyfish made of? A. Water and air B. Water and salt C. Water and jelly D. Water and sugar 相关知识点: 试题来源: 解析 C。水母是由水和胶状物组成的。选项 A 水和空气、选项 B 水和盐、选项 D 水和糖都不是水母...
Jellyfish can float in the water. What helps them do this? A. Their tentacles B. Their light body C. Their strong muscles D. Their sharp teeth 相关知识点: 试题来源: 解析 B。解析:水母能在水中漂浮是因为它们身体轻。选项 A 触手不是漂浮的原因;选项 C 强壮的肌肉不对;选项 D 它们没有牙齿...
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As you make your way to the beach this summer, you might want to brush up on your knowledge of one of the ocean’s most simple but elegant creatures – the jellyfish. They are comprised of 95 percent water and have just a basic nervous system that allows them to smell, detect light,...
The children make a big sandcastle (沙堡) first.Their dad helps them.The sandcastle is nice.Then Risha sees a big jellyfish (水母) in the water.The children and their mom go to see the jellyfish,but their dad doesn't.He goes to buy some ice-cream. ...
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The swim 2 Nyad to be in the water for nearly 53 hours. A 35-person team came with her, and (unlike her previous attempts) she wore a special suit and mask to keep jellyfish off her skin. Some suggested this equipment 3 her performance, though Nyad claime...