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问题 单项选择题

急性硬脑膜下血肿( )

A．CT示新月形高密度灶
B．CT示梭形高密度灶
C．CT示新月形稍低密度灶
D．CT示脑内高密度灶
E．CT示骨板下圆形高密度灶

答案

参考答案：A

解答题

化简：

（1）2a-5b-3a+b；

（2）2x+（5x-3y）-2（3x+y）；

（3）5ab2-3[2a2b-2（a2b-2ab2）]
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填空题

介词填空。

1. My brother often dreams _______ becoming a pilot like Yang Hwei.

2. _______ reading, I love listening to music.

3. _______ your help, I can't get the information about Hawaii easily.

4. "Oh, I'm not in a hurry." She said _______ a smile.

5. Some people talk _______   a loud voice over there. Let's see what's happening now.

6. She decides to work hard _______ the start of this new term.

7. Don't look out _______ the window when you are in class.

8. Is the boy _______ a magazine _______ his hand Mike?

9. When I came into the house, the boy there looked _______  me in surprise.

10. It's only fifteen minutes' walk _______  here.
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