运行锅炉为什么容易发生各类事故?

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问题:

运行锅炉为什么容易发生各类事故?

考点:热力司炉工考试高级热力司炉工高级热力司炉工题库
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如图四幅地图中的虚线,可能发育成河流的是

A.①②

B.③④

C.①③

D.②④

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患儿男,7岁。反复眼睑水肿5个月,尿常规:尿蛋白(+++),红细胞15~20个/HP,血清中乙肝标志物为大三阳。

此例诊断价值最大的辅助检查手段是()

A.血脂测定

B.肾功能检查

C.肾脏病理检查

D.24小时尿蛋白定量

E.肝功能检查

题型:问答题 简答题

The Great Barn Adventure

One morning when I was 11, I explored the town's abandoned round grain barn(谷仓). I found a chained sliding door that was wide enough for me to pass through.

Inside, there was a heavy smell of dead mice in the dark. After my eyes adjusted, I noticed a shaft (升降机井) that rose all the way to the top of the barn. On one side was a one­man elevator with a long rope and roller.

I stepped onto the platform and gave the rope a drag and the elevator began sliding up the shaft, but stopped halfway. After a brief panic attack, I noticed holes in the wall at regular intervals, forming a ladder. For reasons known only to an 11­year­old, I decided it would be better to go up than down. So, with shaking hands, I began climbing the wall.

After what seemed like forever, I reached the top of the shaft. I stood up, dusted myself off and found…absolutely nothing of interest. It was just an empty room with a ladder leading up to the roof. I climbed all the way up here for this? Then I noticed a fire extinguisher(灭火器),which I'd always wanted to shoot off. So this was the chance of a lifetime. I tried it, and, much to my surprise, the thing worked! It shot out a thick cloud of powder that instantly filled the room. I couldn't breathe. I was going to choke to death, and they'd probably never even find my body.

Luckily, I remembered the ladder to the roof. I climbed up, popped the straw roof and saw a bright blue sky.

I suddenly realized the dust and powder pouring out of the top could draw attention. So when the dust had settled, I climbed down and slipped out of the chained door. I'm not sure if I was more excited about being alive or about not being caught, but I ran all the way back home.

小题1:When the author got inside the barn, he ________.

A.noticed a man on the elevator

B.opened the chained sliding door

C.saw many dead mice in the dark

D.found a shaft leading to the top小题2:Which of the following is the right order of the author's adventure?

a. The elevator stopped halfway.

b. He entered the round grain barn.

c. He climbed to the top of the shaft.

d. He found a fire extinguisher and shot it off.

A.b-a-c-d      

B.a-c-b-d

C.c-a-d-b

D.b-c-a-d小题3:After getting out of the chained door, the author might feel ________.

A.inspired

B.relieved

C.surprised

D.disappointed

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下列哪项是正确的

A.颗粒细胞瘤为良性
B.卵泡膜细胞瘤可伴胸腹水,为恶性
C.库肯勃瘤为良性
D.无性细胞瘤为良性
E.未成熟畸胎瘤是恶性肿瘤

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某企业按规定可享受技术开发费加计扣除的优惠政策。年初,企业根据产品的市场需求,拟开发出一系列新产品,产品开发计划两年,科研部门提出技术开发费预算需1000万元,据预测,在不考虑技术开发费的前提下,企业第一年可实现利润500万元,第二年可实现利润1200万元。
假定企业所得税税率为25%且无其他纳税调整事项,预算安排不影响企业正常的生产进度。现有两个投资方案可供选择:
方案一:第一年投资预算为:300万元,第二年投资预算为700万元;
方案二:第一年投资预算为700万元,第二年投资预算为300万元。
[要求]

分别计算两个方案第一年缴纳的所得税。

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