五（1）班同学去植树，若每人种2棵，就会余下24棵树苗；若每人种3棵，就差14棵。五（1）班有多少名同学？有多少棵树苗？
方法一：设五（1）班有x名同学。
2x+24=3x-14，x=38
总棵树：38×2+24=100（棵）
方法二：每人种3棵比每种2棵多种1棵树，共多植树24+14=38（棵），
所以总人数为38人，总棵树为38×2+24=100（棵）
| The early expansion of the sugar industry was based on cane transported from two different parts of the Orient, first from India and second from the islands of the Southwest Pacific. From India, sugar cane was carried through the western regions of Asia into Arabia and later into the countries bordering on the Mediterranean. It was established in Sicily in about A. D. 703 and was carried to Spain in about A. D. 755. As early as A. D. 1,150, Spain had at least 75,000 acres of cane. During this early period sugar cane was grown largely to supply local wants. The Crusades were partly responsible for the further expansion and improvement of the sugar industry and for interesting Europeans in the use of sugar. |
One thing that caused the sugar industry to shift westward was ______.
A．the favorable climate in the Orient
B．better means of transportation
C．the Crusades
D．that cane came from different parts of the Orient