下列不是HIV抗体检测方法的是（）。 A.ELISA法 B.HIV病毒核酸检测 C.

人们吃过糖以后再吃桔子，会感到桔子很酸，这种现象属于（）

A.感觉适应

B.相继对比

C.同时对比

D.感觉相互作用

阅读理解。

     Each cell in the human body contains about 25,000 to 35,000 genes, which carry information that determines

your traits. Traits are characteristics you inherit from your parents; this means your parents pass some of their

characteristics on to you through genes. For example, if both of your parents have green eyes, you might inherit

the trait of green eyes from them. Or if your mom has freckles, you might inherit that trait and wind up with a

freckled face. And genes aren't just in humans - all animals and plants have genes, too.

     Genes hang out all lined up on thread-like things called chromosomes. Chromosomes come in pairs, and there

are hundreds, sometimes thousands of genes in one chromosome. The chromosomes and genes are made of

DNA, which is short for deoxyribonucleic acid.

     Chromosomes are found inside cells, the very small units that make up all living things. A cell is so tiny that

you can only see it through the lens of a strong microscope, and there are billions of cells in your body. Most

cells have one nucleus. The nucleus, which is sort of egg-shaped, is like the brain of the cell. It tells every part

of the cell what to do. How does the nucleus know so much? It contains our chromosomes and genes. Tiny as

it is, the nucleus has more information in it than the biggest dictionary you've ever seen.

1. What is the best title of this passage?

A. What Is a Gene?

B. How Do Genes Work?

C. What Does A Gene Consist of?

D. How Do Nucleus Command Cells?

2. What does the underlined word "inherit" probably mean in the first paragraph?

A. carry

B. send

C. obtain

D. pass

3. Which of the following is NOT true according to the passage?

A. The parents pass some characteristics on to their children.

B. All living things receive traits from the old generations.

C. One's green eyes might be passed on from the parents.

D. A mother's freckled face might affect her young's face.

4. From the passage we can know that _____.

A. genes can decide all your characteristics from parents

B. genes exist inside cells that make up all living things

C. genes tells every part of the cell what to do

D. Chromosomes come in pairs containing genes.

5. From the passage we can conclude that _____.

A. not all cells have one nucleus inside

B. not all living things are made up of cells

C. genes aren't in humans but in animals and plants

D. DNA is made of chromosomes and genes

安全技术的培训坚持（）的原则。

A、教、考分离

B、教、学分离

C、学、用分离

D、以上都不对

纵联闭锁或允许式保护的通道（）

A.只能用载波通道

B.只能用微波通道

C.既可以用载波通道，也可以用光纤

D.只能用光纤

建立HSE管理体系的目的？