说的是这道吗
1. Canadian scientists have calculated that one human being should be struck every nine years by a meteorite, while each year sixteen buildings can be expected to sustain damage from such objects. (A) one human being should be struck every nine years by a meteorite (B) a human being should be struck by a meteorite once in every nine years (C) a meteorite will strike one human being once in every nine years (D) every nine years a human being will be struck by a meteorite(D) (E) every nine years a human being should be struck by a meteorite |