【简答题】The only real and lasting solution, say the experts, is to convince people that driving is a skilled task requiring constant care and concentration.
【简答题】 is a global problem that demands a unified, worldwide solution, which is not only the responsibility of nations in which is most ________. A) relevant B) prevalent C) vigorous D) rigorous
【单选题】AIDS is a global problem that demands a unified, worldwide solution, which is not only the responsibility of nations in which AIDS is most __________.