中断供电将在政治、经济上造成较大损失时,为( )。A.一级负荷 B.二级负荷 C.

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问题:

中断供电将在政治、经济上造成较大损失时,为( )。

A.一级负荷

B.二级负荷

C.三级负荷

D.一级负荷中特别重要的负荷

考点:注册电气工程师供配电专业注册电气工程师(供配电专业)
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3,5,10,25,75,( ),875

A.125

B.250

C.275

D.350

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荧光灯属于()色温,偏()色调,色温在()K-()K。

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串联试验提高特异度。        (  )

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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

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患者,男性,68岁,诊断为胆管结石,拟行胆肠吻合术。查体:白细胞11.5×109/L,中性粒细胞0.78,血清总胆红素162μmol/L,谷丙转氨酶205U/L,凝血酶原时间(PT)18秒。

该患者术前还必须进行哪项检查

A.B超

B.MRI

C.ERCP

D.CT

E.ECG

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