临床中进行肥达试验最常采用的方法为A．正向间接凝集反应B．反向间接凝集反应C．玻片凝

人们常说“上有天堂，下有苏杭”，这里的苏杭是指苏州和杭州，它们分别在[ ]

A．江苏和福建

B．福建和浙江

C．浙江和江苏

D．江苏和浙江

在软件开发过程中，软件结构设计是描述______。

A．数据存储结构

B．软件体系结构

C．软件结构测试

D．软件控制过程

什么叫简化食物网？为什么说应用简化食物网的方法才能使海洋生态系统能流结果的研究切实可行？

I got a job teaching special education at a school in Coachella, California, a desert town about 170 miles from home. It was no (1) job. Street gangs (2) around the school after dark."Be careful," Dad warned me during one of my frequent weekend (3) home. He was concerned about my living (4) , but I needed to be on my own.One evening, I stayed after school to rearrange my classroom. (5) , I turned out the light and closed the door. Then I (6) toward the gate. It was (7) ! I looked around. Everyone had gone home.After (8) all the exits, I found just enough (9) to squeeze under a gate in the back of the school. Then I walked toward my car, parked in a field behind the building.Suddenly I heard voices. I (10) around and saw at least eight boys following me. (11) my pace, I reached into my shoulder bag to get my key. I (12) all over the inside of my handbag. But the key wasn’t (13) ! Dear Lord, please help me, I prayed (14) . Suddenly, my fingers touched a loose key in my purse. I didn’t even know if it was for my car, but I took it out and (15) it. It worked!I opened the door, slid in and locked it—just (16) the teenagers surrounded the car. Trembling , I started the engine and (17) away. When I returned to my apartment, the phone was ringing. It was my Dad. I didn’t tell him about my experience; I didn’t want to (18) him. "Oh, I forgot to tell you!" He said, "I had a(n) (19) car key made and slipped it into your purse—just (20) you ever need it.

第（5）空应选择（）

A．Tired

B．Finished

C．Frightened

D．Hungry

兼并的基本模式有：（）（）（）。