最容易被苯并芘污染的食品有哪些类?() A.腌肉制品类 B.酱油制品类 C.肉罐头类

题型:单项选择题 共用题干题

问题:

最容易被苯并芘污染的食品

有哪些类?()

A.腌肉制品类

B.酱油制品类

C.肉罐头类

D.肉肠类

E.熏烤动物食品类

考点:广东住院医师临床营养学食品卫生学食品卫生学题库
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取10克锌粉和铜粉的混合物与烧杯中,向烧杯中加入等质量的同种稀硫酸,实验过程中得到的数据如下。

(1)写出实验过程中发生反应的化学方程式:                                    

(2)混合物中铜粉的质量是                                     

(3)计算所用稀硫酸中溶质的质量分数。

 第一次第二次第三次第四次
加入稀硫酸的质量20g20g20g20g
剩余固体的质量8.7g7.4g6.1g5.5g
 

题型:单项选择题 共用题干题
使
3
2x-4
有意义的x的取值范围是(  )
A.x>2B.x<2C.x≥2D.x≤2
题型:单项选择题 共用题干题

句型转换。

1. My father watches TV every night. (改为一般疑问句)

    _______ your father _______ TV every night?

2. He had to finish the work. (改为否定句)

    He _______ _______ to finish the work.

3. She wanted to see the doctor because her back hurt badly. (对划线部分提问)

    _______ _______ she want to see the doctor?

4. David was so careless that he didn't find the mistakes in his test paper. (改为同义句)

    David was _______ _______ to find the mistakes in his paper.

5. Yesterday our teacher asked us to clean the classroom.(改为被动语态)

    Yesterday _______ _______ asked to clean the classroom.

6. The car hit the big tree yesterday.(改为反意疑问句)

    The car hit the big tree yesterday, _______ _______?

7. Are there museums in the city? Could you tell me? (合并成含宾语从句的复合句)

    Could you tell me _______ there _______ museums in the city?

8. I borrowed a book from the library. It was newly published. (合并成含定语从句的复合句)

   The book _______ I borrowed from the library _______ newly published.

9. The computer is very useful. (改为感叹句)

     _______ _______ the computer is!

10. what, think, mind, question, don't, people, about, young, the, I (连词成句)

     _____________________________________________________________

题型:单项选择题 共用题干题

贵重中药临床用量一般是()

A.0.03~0.6g

B.0.3~1g

C.1~3g

D.3~6g

E.6~9g

题型:单项选择题 共用题干题

对电力电缆和电机等电容较大的电气设备,直流耐压试验的作用有<)。

A.检测局部破损

B.检测纤维绝缘的受潮状态

C.检测裂纹

D.检测局部放电程度

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