第7题: [单项选择]传染病医院的污水排放二级标准为（）。 A. 粪大肠菌群数500个几，总余氯＜0.5mg/L B. 粪大肠菌群数500个几，总余氯＞6.5mg/L C. 粪大肠菌群数1000个几，总余氯＞3mg/L D. 粪大肠菌群数1000个几，总余氯＞5mg/L E. 粪大肠菌群数5000个几，总余氯＞2mg/L 参考答案:B
第29题: [多项选择]证券市场监管的手段有( )。 A. 法律手段 B. 经济手段 C. 行政手段 D. 市场手段 参考答案:A,B,C 答案解析:[解析] 证券市场监管的手段包括：①法律手段，即通过建立完善的证券法律、法规体系和严格执法来实现监管。这是证券市场监管部门的主要手段，具有较强的威慑力和约束力；②经济手段，即通过运用利率政策、公开市场
第30题: [简答题]Suppose you have done something wrong to your friend Liu Ming for misunderstanding. Now write a letter to apologize to her. You should write approximately 100 words. Do not sign your own name at the end of your .letter. Use" Han Mei " instead. You do not need to write the address. 参考答案:
Dear Liu Ming,
I am so regretted that I am writing this letter of apology to you.
I now realize that I was entirely irresponsible to say that you were an unreliable person. My criticism was solely based on misunderstanding. You promised to tutor my neighbour’s child in English on Sunday but didn’t come. Later it came to me that you were helping send an old lady to hospital.
How regretful I am when I know I had wronged you! I sincerely hope that my unfair remarks will not harm our friendship. Now A beg to withdraw my rush statement about you. Please accept my sincere apology with gratitude.
Yours truly,
Han Mei
