【单选题】It's said that cars are the major source of air pollution in some cities.
【判断题】医疗数据库首先要解决的就是巨大数量的病历资料。()
【简答题】Direction: Fill in each blank with the proper form of the word given in brackets. (注:用括号中的单词的适当形式填空) 1. Sixty percent of the _________ said they disapproved of the president's performance. (respond) 2...
【单选题】It's said that within five years cars will be a lot ____in our country.
【简答题】读图(“岩石圈的物质循环示意图”),回答问题。 小题1:a、b、c、d代表的地质作用分别是: A.岩浆冷凝、外力作用、变质作用、重熔再生 B.外力作用、岩浆冷凝、变质作用、重熔再生 C.外力作用、重熔再生、变质作用、岩浆冷凝 D.变质作用、岩浆冷凝、外力作用、重熔再生 小题2:下列岩石,可能含有化石的是 A.侵入岩 B.沉积岩 C.喷出岩 D.变质岩 小题3:岩石圈的物质循环是自然界重要的物质循环...
【简答题】Many people in England are angry that drivers park their cars on the pavements( 人行道 ). Cars that are on the pavement block( 堵 ) people from walking safely down the street. They have to walk into the r...
【单选题】It's said that cars are the major source of air pollution in some cities.
【单选题】动力变质作用可形成的岩石有______ 。