按照《中华人民共和国立法法》的规定，在我国法律体系中，具有最高法律效力的是()。
A.法律
B.规章
C.行政法规
D.宪法
参考答案：D
根据课文原文填入所缺内容。
1. Just accept them for who they are, and give them encouragement to _________ a life as you do.
2. Asimov had both an _________ that gave him the ability to explore future worlds and an amazing mind.
3. _________ for seeing whales on our tours is 98%.
4. This gives you _________ to practice speaking English.
5. It's a great _________ family to be with.
安全带的保险带、绳使用长度在4m以上的应加缓冲器。（）
