水库的防洪限制水位（） A.应高于正常蓄水位 B.应与死水位一致 C.应与防

如图所示，△ABC沿BC平移后得到△A′B′C′，则△ABC移动的距离是（　　）

A．线段BC的长

B．线段BC′的长

C．线段BB′的长

D．线段CB′的长

男性，32岁。因慢性肾炎、肾功能衰竭于5个月前行同种异体肾移植，手术后维持抗排异治疗。近2周来发热，38.5～39℃，轻咳伴气急。X线胸片示两肺弥漫性细小结节状影，约0.8mm大小，分布比较均匀，其中部分融合。拟诊血行播散性肺结核。从结核病预防角度来说，在器官移植前应该对受者和供者作下列哪项必要的，而目前又被忽视的检查（）

A.受、供者双方都作X线胸部摄片

B.受、供者双方痰、尿标本结核杆菌检查

C.受、供者双方结核菌素试验，阳性则手术后受者应接受预防性化学治疗

D.受、供者双方接（补）种卡介苗

E.受、供者双方常规预防性化学治疗

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.

18（）

A.displease 

B.surprise 

C.cheat 

D.worry

只要是由过去的交易、事项形成的并由企业拥有或控制的资源，均应确认为企业的一项资产。 ( )

西方经济学的理论在内部逻辑关系上是（）的，但其许多前提假定与现实情况严重不符。