根据句意及首字母或汉语提示完成单词
____ Luckily, the car a______ wasn't serious and nobody was badly hurt.
____ I will have an i______ tomorrow, so I need to get ready for it.
____ This is a piece of __________________(令人失望的) news.
____ Let's have a s_________party for Lana on her birthday. She will be very happy.
____ I think that’s a good _________(决定).

You _____ jump onto a bus while it is still moving. It is too dangerous.  

父母比我们阅历丰富，发生的人生经验也比我们丰富。我们真正走上社会，掌握的生活知识、实践经验少， 行为方式不同，父母冷静、谨慎、恪守原则。我们喜欢冒险、讲效率、不拘传统。

科学家成功地制成了一种新型的碳氧化合物，该化合物晶体中每个碳原子均以四个共价单键与氧原子结合为空间网状的无限伸展结构．下列对该晶体叙述错误的是（　　）