2020-12-01adminxiezi阅读(439)

(1)【◆题库问题◆】：[单选] 根据下列短文，回答{TSE}题。　　Despite the fact that today viruses(病毒)are known to cause cancer in animals and incertain plants，there exists a great reluctance to accept viruses as being of importance in humancancer．

2020-07-25adminxiezi阅读(249)

(1)【◆题库问题◆】：[单选] 索引是以提供（）内容梗概为目的，不加评论、补充和解释，简明、确切地记叙文献重要内容的短文。A．文献B．研究C．假说D．方法

2020-07-25adminxiezi阅读(288)

(1)【◆题库问题◆】：[单选,材料题] How will the government know what the air quality is?根据下列短文，回答下面的题目。　　A panel of government officials is worrieD．The air quality in some areas is not gooD．Theair is polluted with soot．The officials w