粪镜检中性粒细胞增多最常见于（）。 A.过敏性肠炎 B.肠道寄生虫病 C.细菌性痢疾

（10分）汽车以36km/h的速度行驶。刹车时，汽车的加速度大小是，求：从开始刹车的时刻起，求：（1）经多长时间汽车静止？

（2）5s时间内汽车的位移大小是多少？

下列哪些并发症不可能发生于骨折晚期（）。

A.骨化性肌炎

B.骨缺血性坏死

C.创伤性关节炎

D.关节僵硬

E.脂肪栓塞

下列各小题中均有一处错误,请将其划出来并将正确答案填写在题后的横线上。

1.That books are my brother's. __________

2. -Did Mike and his sister Lucy enjoy them at the party?

    -Yes. They had a good time. ___________

3. I tried four jackets on, but neither of them looked good on me. ___________

4.He feels lonely because he has got a few friends to talk with. ___________

5. -Don't try to hide anything from me, Mary.

    -I know something about it, Mum! I was sleeping at that time! ___________

6. -Are these clothes your?

    -No, they aren't. ___________

7. -Would you like chicken noodles or beef noodles?

    -Either. I like noodles with vegetables in them. ___________

8.Both of the girls comes from the USA. ___________

9.None of the student were very happy. ___________

10.Here are two books about Chinese classical literature. You can borrow any of them. ___________

鸽子走路时，头部并不是有规律地前后移动，而是一直在往前伸。行走时，鸽子脖子往前一探，然后，头部保持静止，等待着身体和爪子跟进。有学者曾就鸽子走路时伸脖子的现象作出假设：在等待身体跟进的时候，暂时静止的头部有利于鸽子获得稳定的视野，看清周围的食物。

以下哪项如果为真，最能支持上述假设（）

A.鸽子行走时如果不伸脖子，很难发现远处的食物。

B.步伐大的鸟类，伸缩脖子的幅度远比步伐小的要大。

C.鸽子行走速度的变化，刺激内耳控制平衡的器官，导致伸脖子。

D.鸽子行走时一举翅一投足，都可能出现脖子和头部肌肉的自然反射，所以头部不断运动。

E.如果雏鸽步态受到限制，功能发育不够完善，那么，成年后鸽子的步伐变小，脖子伸缩幅度则会随之降低。

试述负压筛析法检测水泥细度的试验方法。