下列反应的离子方程式正确的是 A.三氯化铁浓溶液滴入沸水中,制取氢氧化铁胶体Fe

题型:选择题

问题:

下列反应的离子方程式正确的是

A.三氯化铁浓溶液滴入沸水中,制取氢氧化铁胶体Fe3++3H2O Fe(OH)3↓+H+

B.SO2与足量NaOH溶液反应:SO2+2OH=SO32+H2O

C.硫化亚铁与稀硝酸反应:FeS+2H=Fe2+H2S↑

D.氯化亚铁溶液中加入硝酸:3Fe2++4H++NO3=3Fe3++2H2O+NO↑。

考点:离子方程式
题型:选择题

阅读短文,选择正确答案。

     One of my favourite memories as a child is going by the river and sitting freely on the bank. There I would

enjoy the peace and quiet, watch the water rush down and hear the sound of falling leaves.

     When I think about the bamboo tree's ability to return to its original position, the word "resilience" comes to

mind. When used to describe a person, this word means the ability to become well again from shock,

disappointment or any other situation that makes somebody unhappy.

     Have you ever felt you are about to break with a sudden noise? Have you ever felt you are at your breaking

point? Thankfully, you are lucky to have the experience to live to talk about it.

     Life is a mixture of good times and bad times, happy moments and unhappy moments. Next time you are

experiencing one of those bad times or unhappy moments that take you close to your breaking point, don't break.

Try your best not to let the situation get the best of (占上风) you. 

     Hopes will take you through the unpleasant experience. With hopes for a better tomorrow or a better

situation, things may not be as bad as they seem to be. The unpleasant experience may be easier to deal with if

the end result is worth having.

     If you are at your breaking point, you should be like the bamboo tree, bend, but don't break!

1. The writer was moved by _______ one day when he went to sit by the river. [ ]

A. the water

B. the bamboo tree

C. the leaves

2. What does the underlined word "resilience" mean? It means _______. [ ]

A. 恢复力

B. 兴奋

C. 忧伤

3. What did the writer use to do when he was young? [ ]

A. He used to go to the park to hear the sound of falling leaves.

B. He used to go to the lake and watch the water.

C. He used to go by the river and sit on the bank.

4. Next time you experience one of those bad things, try your best ______ get the best of you. [ ]

A. to let the situation

B. not to let the situation

C. to change the situation to

5. What can we learn from the passage? [ ]

A. We should bend when we hear a sudden noise.

B. We should go by the river and sit freely on the bank.

C. We should have the ability to become well again.

题型:选择题

患者,男,68岁。反复咳嗽、咳痰、气促41年,心悸、水肿5年,近1周来症状加重入院。查体:呼吸急促,双肺可闻及干湿啰音,P2亢进,三尖瓣区闻及3/6级收缩期杂音。肝右肋下4cm,压痛(+),肝颈回流征阳性,下肢水肿。此时首选的治疗是使用()。

A.强心剂

B.利尿剂

C.心血管扩张剂

D.抗生素

E.祛痰剂

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肺动脉造影时肺栓塞的主要表现哪项不正确()。

A.肺动脉一支或分支内有充盈缺损

B.某一支肺动脉分支完全阻断

C.肺动脉主干有扩张

D.某一局部肺动脉延迟充盈

E.肺动脉局部有狭窄

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职业道德对企业起到增强竞争力的作用。

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我国现行宪法沿袭1954年宪法和1978年宪法的规定,实行下列哪种宪法监督制度( )。

A.最高国家权力机关监督制度

B.司法机关监督制度

C.司法审查制度

D.特设机关监督制度

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