[填空题]A drug user’s withdrawal process from physical addiction depends on his or her use of the drug’s ______.

[填空题]A drug user’s withdrawal process from physical addiction depends on his or her use of the drug’s ______.

[单项选择]Opiate withdrawal causes severe physical discomfort and can be life-threatening. To minimize these effects, opiate users are commonly detoxified with which drug（）
A. Barbiturates.
B. Amphetamines.
C. Methadone.
D. Benzodiazepines.

[填空题]In fact, the process of giving up drug addiction for a determined person is easier than what he thought.

[单项选择]Why do many people suffer side-effects from a drug even though they take it as directed（）
A. Because they are not accustomed to it.
B. Because they are not psychologically prepared for it.
C. Because their genes differ from those who have been tested for it.
D. Because they arc less sensitive to it than those who have been tested for it.

[单项选择]The process that the word "donate" comes from "donation" is called（）
A. blending
B. backformation
C. clipping
D. derivation

[简答题]Soft Drug

[单项选择]Drug　Evaluation
A. 体温计
B. 血压计
C. 听诊器
D. 人工晶体
E. 光学内窥镜

[单项选择]Drug　Stability
A. 体温计
B. 血压计
C. 听诊器
D. 人工晶体
E. 光学内窥镜

[单项选择]The increase in total revenue from selling the additional output of one more unit of an input is called the input’s:（）
A. factor of production.
B. marginal revenue.
C. marginal revenue product.

[简答题]checkout process

[单项选择]
One of the main weapons to prevent mother-to-child transmission of the AIDS virus during birth is the drug nevirapine. But when nevirapine is used alone just once, HIV starts becoming resistant to it. Research in Botswana shows that the resistance is not long lasting and that this affordable drug does not have to be abandoned forever by infected mothers who have already taken it.
International medical guidelines call for pregnant women with advanced HIV to get a combination of AIDS drugs including nevirapine to prevent passing their infection on to their newborns during delivery. But in poor countries, combinations have been expensive and nevirapine has often been used alone, since studies have shown that a single dose can cut the transmission rate in half.
The problem is that HIV resistance builds against it quickly when used alone just once because other drugs are not present to k
A. It is a broad-spectrum antibiotic and kills all kinds of bacteria.
B. It is an antiviral preparation and kills all kinds of viruses.
C. It prevents the transmission of the AIDS virus and protects one from heart attack.
D. It may prevent passing HIV infection from mothers on to their newborns during delivery.

[简答题]Process Explanation
Process explanation is a description of an orderly process such as a math formula or a scientific technique. It often happens when someone encounters some difficulties in operating particular projects. There are two types of process explanation: directive explanation and informational explanation. Directive explanation is to directly demonstrate or tell people how to carry out a project step by step. Informational explanation means giving people a general idea about the project without presenting how to follow the instructions and finish the tasks accordingly.
Question: The professor gives his personal experience to illustrate the definition and two types of "process explanation". Explain how this example is related to the reading passage.