胸骨旁左室长轴切面显示的心脏内部结构中，哪一项是错误的（） A.左心室腔 B.主动脉

根据短文内容，填写信息卡。

According to the Center for Disease Control and Prevention (CDC) (疾病控制预防中心), if you don't often wash your hands, you can pick up viruses (病菌) from many places and make yourself ill. You're at risk every time you touch your eyes, nose or mouth. In fact one of the most common ways people catch colds is by rubbing their noses or their eyes when there are cold viruses on their hands. If you don't often wash your hands,especially when you're sick, you may spread the viruses directly to others. You should wash your hands in the following situations:     ●After using the bathroom.     ●After blowing your nose or coughing.      ●Before eating, serving or preparing food.      ●After touching pets or other animals.      ●After visiting anyone who is sick.      ●When your hands are dirty. There's right way to wash your hands. Follow these simple steps to keep your hands clean.     ●Use warm water (not cold or hot)     ●Wash for 15 seconds.       ●Rinse (冲洗) well under warm running water and dry them with a clean towel.

Information Card Way to protest against (防止)  the spread of illness 1.                   hands. Correct way to wash your hands Use 2.                   running water. Situations in which you musy wash your hands After using the 3.                   . Before having 4.                   . After visiting 5.                    people. Time needed wash your hands 15 seconds.

最常见的桥脑小脑角区肿瘤是（）。

A.脑膜瘤

B.面神经瘤

C.听神经瘤

D.胶质瘤

E.三叉神经瘤

民航KU卫星网采用的网络拓扑结构是（）

A、星形

B、网形

C、树型

D、环型

C

Jill lived with her grandma. The old woman was p enough that she could do everything herself at home.
As soon as Jill began to tidy the rooms or wash something, her grandma stopped her and told her to work hard at her lessons. Jill had to listen to her grandma and spent all her time on her study. So she went to college at last.
Now the girl has left college. She did well in all her subjects and easily found work in Mr. Brown’s company. She was sure Mr. Brown would put her in an important position(位置).
On the first day the boss gave her a broom and said, "Your first work is to sweep the offices. "
"What" the girl called out in surprise," I’m a college student, you know. "
"I’m sorry I don’t know that. Here, give me the broom and let me show you!\

______, so she was surprised.

A．Mr. Brown didn’t know Jill was a college student

B．Mr. Brown didn’t know Jill was good at her subjects

C．Mr. Brown didn’t like Jill at all

D．Mr. Brown told Jill to be a cleaner

机柜内部高度是用U来衡量的，1U等于（）mm。