单选题
Any person who drops out of high school will be unemployed unless he or she finds a low-paying job or has relatives with good business connections.
单选题
Which one of the following conclusions CANNOT be validly drawn from the statement above?
单选题
Assume that Tom is employed and does not have a lowpaying job. Which one of the following statements, when added to this assumption, contradicts the original statement made in the statement above?