пαê¸ßÒ»Ó¢ÓïÓï·¨¸´Ï°ÊÔ¾í

¡¡¡¡B. The 1981 line didn't leave much to the poor.ª¤

¡¡¡¡C. There were more Americans who were officially poor by the 1981 line.ª¤

¡¡¡¡D. There were more Americans who were officially poor by the 1918 line.ª¤

¡¡¡¡71. From the last two sentences we can see that 1981 government's poverty line .ª¤

¡¡¡¡A. was of no good for the poor

¡¡¡¡B. was not put into operation thenª¤

¡¡¡¡C. was officially approved

¡¡¡¡D. was not helpful to the poorª¤

¡¡¡¡Eª¤

¡¡¡¡You can not see any object unless light from that object gets into your eyes. Some of the things you see give off light of their own. The sun, the stars, a lighted lamp are examples that can be seen by their own light. Such things are luminous. Most of the things you see are not giving off light of their own. They are simply reflecting light that falls on them from the sun or some other luminous body. The moon, for example, does not give off any light of its own. It is nonª²luminous. You see it because sunlight falls on it and some of it reflects in our direction. So moonª²light is only secondª²hand sunlight.ª¤

ÉÏÒ»Ò³  [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19]  ÏÂÒ»Ò³