问题 单项选择题 A1/A2型题

男性,45岁。肝炎,肝硬化5年。超声检查:肝右叶有一6cm×5cm中等回声分叶状肿块,边界尚清,可见低回声晕,其内回声不均匀,呈镶嵌样改变。彩色多普勒超声于肿块内记录到高速动脉血流信号。最可能的诊断是()。

A.肝血管瘤

B.局限性脂肪肝

C.腺瘤

D.炎性假瘤

E.肝细胞癌

答案

参考答案:E

阅读理解

How do you remember the way to your house? Where do dreams come from? It is your brain(大脑) that does these things. A British scientist showed that “sleep can improve one’s memory.” It’s not a dream for students to study when they sleep. In fact, your brains is working day and night. If you learn words before bed, a certain part of the brain may help you to remember the words while you sleep. What’s more, another scientist in the USA found that there was a “talent button(天才按钮)” in the human brain. It might make a person more talented.

There are more interesting things about the brain. Your brain uses less energy than a fridge light. Just two bananas can give the brain enough energy to work for a whole day. According to some scientists, yawning(打哈欠) keeps our brains “cool”, which makes us think quicker.

Here are some pieces of advice to keep a good brain:

Eat healthy food.

Get a lot of playtime or exercise.

Don’t drink or smoke.

Use your brain a lot.

小题1: A British scientist found out that ________ could improve our memories.

A.drink

B.dreams

C.sleep

D.bananas小题2: According to the passage, if we want to have a good brain, we should ________.

A.use our brains more

B.sleep fewer hours

C.work longer hours

D.remember fewer things小题3:Which of the following is TRUE according to the passage?

A.Our brains only work in the daytime.

B.Our brains need much energy every day.

C.Smoking can keep our brains healthy.

D.Getting exercise is good for our brains.

多项选择题