Q19: Industrial accidents are more common when some of the people in safety-sensitive jobs have drinking problems than when none do. Since, even after treatment, people who have had drinking problems are somewhat more likely than other people to have drinking problems in the future, any employer trying to reduce the risk of accidents should bar anyone who has ever been treated for a drinking problem from holding a safety-sensitive job.
Which of the following, if true, most seriously undermines the argument above?
- Some companies place employees who are being treated for drinking problems in residential programs and allow them several weeks of paid sick leave.
- Many accidents in the workplace are the result of errors by employees who do not hold safety-sensitive jobs.
- Workers who would permanently lose their jobs if they sought treatment for a drinking problem try instead to conceal their problem and continue working for as long as possible.
- People who hold safety-sensitive jobs are subject to stresses that can exacerbate any personal problems they may have, including drinking problems.
- Some industrial accidents are caused by equipment failure rather than by employee error.
给出的答案是 c,但是不是很明白为什么正确.我选了b Q40: Investment banks often have conflicting roles. They sometimes act for a client company by raising capital from other investment institutions as advantageously as possible, but their analysts also sometimes send unfavorable reports on the financial health of companies for whom they are raising capital to other clients who wish to make investments. Analyses of companies’ financial health need to be unbiased if an investment bank is to achieve long-term success.
If the statements above are true, which of the following practices, if adopted by an investment bank, would hinder its long-term success?
- Evaluating and rewarding the bank’s analysts on the basis of recommendations made by managers who are solely engaged in raising capital for clients
- Using reports by the investment bank’s analysts to determine how best to raise capital for a client
- Sharing the task of raising capital for a client with other investment banks
- Ensuring that conflicts between analysts and those who raise capital for clients are carefully mediated and resolved by impartial arbitrators
- Monitoring the success or failure of analysts’ current predictions about how companies will perform financially, in order to determine the value of future predictions
看不太明白题目...请求大家帮助!!! | 
