【简答题】第二 卷 ( 共三部分,满分35 ) 第四部分 单词拼写 (共10小题;每小题1分,满分10分) 71. The scientist o__________ the mice carefully after they were given the drug. 72. Many volcanoes have been dead for not having e__________during the...
【简答题】People without homes have always been present in America.In the past,they were called hobos,bums,or drifters.It was not until the early 1980s that these people received a new name,when activists named...