单选题 It sounds like the premise for a science fiction novel, but scientists are today developing a drug that could eliminate traumatic events from our memories. Thus far the research is focused on altering memories immediately following one particular type of trauma, car accidents, with promising results. But the potential applications of the research are far more wide reaching and morally ambiguous. On one hand, such a drug could provide a breakthrough in the treatment of post-traumatic stress disorder in war veterans and rape victims. On the other hand, by relegating our memories to oblivion, such a drug could fundamentally change our sense of self and personal history. It is unclear how the human brain stores memories, and much is unknown about why painful memories of traumatic events come back to haunt some and not others. But one thing is certain--as research into the technology of altering memories continues, so will the ethical debates on whether this pharmaceutical innovation falls outside the spectrum of appropriate medical interventions.

单选题 The main point of the passage is to
A. describe the premise of a science fiction novel
B. propose a remedy for traumatic brain injuries
C. question certain medical research
D. admit to the failings of pharmaceutical innovation
E. reject the concept of drug trials

单选题 Which of the following can be inferred from the passage regarding research into the memory-altering drug?
A. It is currently applicable to many types of traumatic situations.
B. Research is ongoing, and the treatment remains controversial.
C. Our sense of self as well as our personal history is essentially static.

填空题 Select the sentence that mentions a specific moral dilemma resulting from the use of a memory-altering drug.

单选题 It can be inferred from the passage that
A. scientists have discovered a means by which human memories can be completely eliminated
B. only drugs that affect memory are morally ambiguous
C. ethical debates are a predictable result of certain types of scientific research