题目

A girl and a boy were on a motorcycle, ___41___(speed) through the night．They loved each other a lot. Girl：“Slow down a little．I am ___42___ (scare)．” Boy：“No, it’s so fun．” Girl：“Please…it’s so scary．” Boy：“Then say that you love me．’’ Girl：“Fine. I love you. Can you slow down now?” Boy：“Give me a big hug.” The girl ___43___ (give) him a big hug. Girl：“Now can you slow down?” Boy：“Can you take off my helmet and put it on? It's ___44___ (comfort) and it’s bothering me while I drive.” The next day, there ___45___ (be) a st12．2014年非洲地区爆发埃博拉疫情，埃博拉病毒是一种RNA病毒，下列关于该病毒的叙述正确的是（　　）A．属于生命系统层次中的最小层次B．没有细胞结构，只能寄生在活细胞中C．能在无机环境中繁殖，因此具有传染性D．可用煮熟冷却后的肉汤大量培养，用于科学研究