【简答题】A California Condor’s Shocking Recovery California condors are North America’s largest birds, with wind-length of up to 3 meters. In the 1980s, electrical lines and lead poisoning( 铅中毒 ) nearly drove ...
【简答题】Knowledge Economy There have long been markets in tin, cocoa, silver and the like. There used to be security in thinking that somewhere there was a product, something you could touch and see. Now ther...
【简答题】Watch the clip again and fill in the blanks in the following sentences. The school is ready to start the (1)_____ phase of refurbishment of the old building. The new building project in the school has...
【简答题】(提示:此题为改错题;请将划线词的正确表达填在对应的空格中, 有一处划线词需删除, 请回答“删除”; ()处为添加一词。) "Antibiotics do not work against viruses, only bacteria," the WHO said on (1) it’s official website. However, if (2) the patient is hospit...
【简答题】Every Saturday morning, there is a line of boys and girls on Garden Street. They are waiting to see a film.The film never starts before eight o'clock.But the boys and girls can't wait to come earlier ...