二元经济理论看重“劳动力无限供给”，然而，在有些国家并不是素质高、有效率、有能力的劳动力的供给，比如，拉丁美洲的人由于受到天主教观念的影响，厌恶劳动而喜欢玩乐，许多地方成了“懒汉”的无限供给；还有一些国家是自杀爆炸者的无限供给。像经济学家所设想的那种勤奋的劳动力无限供给的例子，在这个世界上并不是普遍的。并且，即使有无限供给，谁来吸收这些劳动力，也是一个问题。
以下理解错误的是( )。

A．“劳动力无限供给”要求素质高、有效率、有能力的劳动力
B．各地劳动力素质、水平不同
C．勤奋的劳动力无限供给是可能的
D．“劳动力无限供给”理论不能成立

Many people are waiting for the train. Some are reading the newspaper and some are saying goodbye to their friends.

Mr. Wang, Mr. Li and Mr. Chen are talking so happily that they don’t know the train is going to leave. The guard says to them, “Hurry up! The train is going to leave.” The three men hear the guard. Two of them jump onto the train quickly before it moves. Mr. Wang is left behind. He looks very sad. The guard says to him, “Don’t feel bad. The next train will come in ten minutes.” “ I know,” Mr. Wang says, “It is my train . My friends only come to say goodbye to me.”

小题1:Mr. Wang ,Mr. Li and Mr. Chen are talking at the station.

小题2:There are only three men at the station.

小题3:Mr. Wang jumps onto the train.

小题4:Mr. Chen and Mr. Li are Mr. Wang’s friends.

小题5:Mr. Chen and Mr. Li really want to jump onto the train.