单项选择题
A．a review of a film B．a book about the U. S. Air Force C．an essay on satire D．a review of a book
A．under the thumb B．below the hands C．subject to the palm D．in the fingers
A．it protects him against the harmful rays from space B．it provides sufficient light for plant growth C．it supplies the heat necessary for human survival D．it screens off the falling meteors