【单选题】Knowledge is power. But there is another thing we must remember. An intelt mind needs a strong body to make it most useful. There are a great many good exercises for building up our bodies. Many ...
【简答题】A.There is enough spare time to fix the projector. B.There is another projector the man can use. C.The presentation can be given in another room. D.She is going out to order a spare projector.