________________ are more commonly known as 'mind-enhancing drugs' or 'smart drugs'. A plethora of drugs are already known to cause a variety of effects on the brain, e.g., the stimulatory action of caffeine.
举一反三
- What types of drugs are involved with reproductive health() A: antineoplastic drugs B: opioids C: antirheumatic drugs D: antituberculosis drugs
- When taken in large quantities some drugs can cause permanent brain damage. A: lasting B: serious C: terrible D: temporary
- Drugs and alcohol abuse can be the cause of significant memory loss.
- Some soft drugs are believed to be（ ）than hard drugs like heroin, but this is misleading. A: more powerful B: less damaging C: less addictive D: more exciting
- Why can middle-aged and old people have an easy access to drugs A: Drugs are covered by their social welfare. B: Drugs are covered by their medical care. C: They rely on drugs to kill their pains. D: They usually have money for drugs.