【单选题】听力原文: Most ants are hard workers and often work from six in the morning until ten at night. The work is divided among the worker ants so that each one has a certain amount to do. We do not know how th...
【单选题】听力原文: Most ants are hard workers and often work from six o'clock in the morning until ten o'clock at night. The work is divided among the worker ants so that each one has a certain amount to do. We do...