燃烧三要素是（） A.可燃物、助燃物、氧气 B.可燃物、助燃物、火源 C.闪点、燃点

When you finish high school or university, is learning done? The answer is “no”. In many countries, people continue learning all their lives. 小题1:____ is lifelong(终身的) learning important? How can it help you?

You go to school and learn. You study. You take tests. 小题2:____ learning doesn’t only happen in school. Learning doesn’t小题3:_____ when you graduate from high school or college. You are learning all the time. For example, learning can 小题4:___ when you go to a museum. It can 小题5:____ happen when you get a job. You learn when you 小题6:_____ sports or when you take a trip. 小题7:_____ is life! We never stop learning. Every day you can improve yourself by learning something 小题8:_______.

Let’s look at one example of lifelong learning in Japan. In Japan, lifelong learning is very important. People in Japan like to try new learning activities. Music, calligraphy(书法) and foreign languages are some of their 小题9:_____ classes.

When we graduate from school, we should 小题10:____ on learning. Make lifelong learning one of your goals!

金融机构面临的下列风险中，属于信用风险的是( )。

A．交易对手违约

B．利率风险

C．现金流断裂

D．管理失误

在作为公共健康政策的工具方面，流行疾病的研究比研究毒素对动物的影响有一个有利之处：在流行病学中绝不需要在不同种类的生物间作推论。 下列选项中，可由上文推论得出的是( )。

A．在流行病学中，生物间的推论只是辅助工具

B．流行病学是一种精确的科学

C．在流行病学中，人类可直接作为研究的主体

D．动物体的毒素研究得出结论的速度比流行病学慢

警告与批评教育不同，它带有一定的（）。

A、强制性

B、随意性

C、机动性

3311E汽车转向系统中的双向卸载阀的作用是改变方向。