有如下转化关系(其他产物及反应所需条件均已略去)。以下推断_爱下问搜题

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问题选择题

有如下转化关系(其他产物及反应所需条件均已略去)。

以下推断错误的是(　　)

A．当X是盐酸时，则F是稀硝酸

B．当X是氢氧化钠时，则F是稀硝酸

C．当X是氢氧化钠时，B跟Cl₂反应可能有白烟现象

D．当X是氢氧化钠时，B能使酸性高锰酸钾溶液褪色

答案

答案：A

B项，NH₄ClNH₃N₂NONO₂HNO₃；C项，8NH₃＋3Cl₂=6NH₄Cl＋N₂产生白烟；D项，H₂SNa₂SSSO₂O₂,SO₃H₂SO₄，Na₂S能被酸性KMnO₄溶液氧化。

阅读理解

We were flying to a meeting. I was in the middle    36 .I found that the young woman sitting next to me was very   37 and deep in thought. Then I asked her where she was from, where she was going and   38  she did.
She was a student and had been attending   39 in Poland-----the homeland of her father. Then she told me sadly that her father had    40    . She had chosen to attend college in Poland   41 her father’s wishes and their relationship had been  42  .They hadn’t forgiven each other 43  he died.
She seemed so sad. I looked at her, trying to  44  some words to say. I asked her if she had forgiven 45  for not realizing her father’s dream. She answered that she couldn’t forgive herself and felt so 46 .Slowly, I began to tell her about forgiveness. I encouraged her to 47  that because I believed her father wanted that too. She should forgive herself 48  how awful she thought she had been.
I told her about 49  I had done as a teenager for which I had felt guilty for many years. How I was 50  with the choice of forgiving myself or to 51 feeling guilty for the rest of my life. I had 52  to forgive myself . The light in her eyes went on. She began to understand that she was 53   forgiven and could forgive herself. She could be 54  and happy.
How about you? Is there anything in your 55  for which you feel guilty?

B．even though

单项选择题

（）是水路运输的始发地、目的地或途径地，是货物换装和集散的中心，是水路运输和水陆联运的枢纽。

A.码头

B.港口

C.货运站

D.堆场