【简答题】Healthy oceans can help ease the increasing burden our population is placing on this planet, but we need to be able to explore, observe and learn about the oceans in their entirety in order to protect...
【简答题】根据句子的描述选择最佳答案,并将所选单词的字母填写在括号内。 1. It's a big cat. We can see a Chinese word '王'on it head. What is it? [ ] A. A dog B. A tiger C. A horse 2. It's a season. It's hot. We can go swimming and eat ice...