灭火作战计划的内容主要是地区单位的概况、()特点等。（A）生产  （B）经营  （C

阅读理解。

    Elephants use their trunks (鼻子) the way people use their hands. At the end of the trunk are parts that act

like fingers. These allow elephants to do wonderful things. They pick up their food-parts of trees or maybe just

a nut. They use their trunks to drink water or spray the water over their bodies to cool off. Because elephants

do not see well, they use their trunks as "eyes".They do not walk where their trunks cannot feel the ground.

    Carole is a twenty-two-year-old elephant at the San Diego Wild Animal Park. She can paint with her trunk.

Her paintings are sold to make money for the park.

1.Elephants pick up objects with their ______. [ ]

A. feel

B. fingers

C. teeth

D. trunks

2.Elephants do not ______. [ ]

A. eat tree parts

B. see well

C. eat nut

D. like water

3. Carole is ______. [ ]

A. a wild animal park

B. an elephant trainer

C. an elephant

D. a city

4. The word "spray" means ______.[ ]

A. 喷

B. 饮

C. 舀

D. 掘

5. The best title of the passage is ______. [ ]

A. Elephants' Trunks

B. A Clever Elephant

C. How Elephants Find Food

D. How Elephants Paint

我们都做过“探究杠杆平衡条件”的实验．

（1）没有挂钩码时，若杠杆左端下倾，则应将右端的平衡螺母向______（“左”或“右”）调节，使杠杆在______位置平衡，目的是______

（2）实验中，用图所示的方式悬挂钩码，杠杆也能水平平衡（杠杆上每格等距），但老师却往往提醒大家不要采用这种方式．这主要是因为该种方式（______）

A．一个人无法独立操作；

B．需要使用太多的钩码；

C．力臂与杠杆不重合；

D．力和力臂数目过多．

关于心房颤动的治疗原则，下列不正确的是（）

A.持续性心房颤动不能自发转复窦性心律的应至少给予患者一次复律机会

B.48小时内新发生者，应尽快复律，无须抗凝

C.经转复及维持治疗均无效，心房颤动持续时间1年以上者，治疗目的为控制心室率，预防心力衰竭

D.对心房颤动持续时间超过48小时者应在有效抗凝治疗后再复律

E.对合并心功能不全的心房颤动患者，应首选普罗帕酮控制心室率，防止心功能进一步恶化

1998年《建筑法》、2002年《安全生产法》、2004年《建设工程安全生产管理条例》颁布实施提供了法律依据.

被称为滤泡囊肿的是（）

A.始基囊肿

B.含牙囊肿

C.角化囊肿

D.根尖周囊肿

E.鳃裂囊肿