以下属于政策性原则的法律原则是： A．无罪推定原则 B．依法治国，建设社会主义法治国

一个供应商的产品成本为12元，它为不同买方提供了不同的价格：对甲为30元，对乙为22元，对丙为15元，对丁为10元。你认为该供应商对丙的感知是（）。

A.维持关系

B.盘剥关系

C.发展关系

D.核心关系

受伤后8h以内伤口属：（）

A.清洁伤口

B.污染伤口

C.轻度感染伤口

D.重度感染伤口

E.异物存留

HLA血型基因位于（）

A.1号染色体

B.3号染色体

C.6号染色体

D.9号染色体

E.12号染色体

关于单卵双胎其胎盘和胎囊根据受精卵分裂时间而有差异，下列描述正确的是（）。

A.受精卵分裂发生在受精后12小时形成单羊膜囊单绒毛膜

B.受精卵分裂发生在受精后3天内形成双羊膜囊双绒毛膜

C.受精卵分裂发生在受精后4~8天内形成双羊膜囊单绒毛膜

D.受精卵分裂发生在受精后9～13天内形成单羊膜囊双绒毛膜

E.受精卵分裂发生在受精后13天后形成不同程度不同形式的联体儿

High-tech machines have made life easier for millions around the world. However, some people still prefer low-tech ways of doing things. Here’s an example of why this is happening. You can microwave a frozen hamburger in 60 seconds. However, it won’t taste as good as one you cook on the stove. And if you’re in that much of a hurry, you probably won’t take time to toast the bun. High-tech cooking saves time, but it doesn’t make for better tasting meals.

Most people get their news from high-tech sources like television or the Internet. This has many advantages. For example, electronic news is more up to date than newspapers or magazines. It’s also more exciting to see live and videotaped news events than photographs. However, newspapers and magazines have some important advantages. They give more background and details. They also let you read the parts that are important to you and skip the rest.

Other high-tech timesavers have similar disadvantages. For example, most people use the phone or email to stay in touch with friends and family members who live in other places. But when you use the Internet or the phone, you don’t always think carefully about what you are saying, and sometimes you forget the important things you want to communicate. Similarly, when you word process a home work assignment instead of handwriting it, you can check your spelling electronically and put in fancy headings. However, some students are so busy with the computer that they don’t pay enough attention to the actual words they are writing.

72. Which of the following statements is TRUE according to the passage?

A. The writer likes high-tech cooking.

B. Low-tech cooking produces better-tasting meals.

C. High—tech news programs always keep you reading what is important to you.

D. Handwritten homework is better than word-processed homework. 

73. How does the writer feel about high—tech tools?

A. Better late than never.                        B. Easy come, easy go.

C. Every coin has two sides.                     D. Learn to walk before you run.

74. What is the main subject discussed in the text?

A. High—tech vs. low—tech.

B. Advantages vs. disadvantages.

C. Newspapers and magazines vs. television and the Internet.

D. Word—processing vs. handwriting.

75. How is the text organized?

A. Main idea — Argument — Explanation.

B. Opinion — Discussion — Description.

C. Topic — Comparison — Supporting examples.

D. Introduction — Supporting examples — Discussion.