【单选题】双方运动员挑边时,胜方选择了首先在一方场地进行比赛,留给负方可以选择的选项是()
【单选题】Many people believe that our species ______ threatened with extinction.
【单选题】今年5月18日.英美科学家公布了人类第一号染色体的基因测序图,这个染色体是人类“生命之书”中最长也是最后被破解的一章.据报道,第一号染色体中共有2.23亿个碱基对,2.23亿这个数用科学记数法可表示为( )
【单选题】Many people believe the author wrote the book in 1977. He died in 1975. ( but )
A.
Many people believe the author wrote the book in 1977 but he died in 1975.
B.
He died in 1975 , but many people believe the author wrote the book in 1977.
【简答题】2006年5月18日.英美科学家公布了人类第一号染色体的基因测序图,这个染色体是人类“生命之书”中最长也是最后被破解的一章.据报道,第一号染色体有2.23亿个碱基对,2.23亿这个数用科学记数法可表示为( )
【单选题】Many people believe that there will be few problems in our life in the future ______.can be solved by computers and Internet.
【简答题】According to scientists, many people believe that physical cleanliness is trongly linked to ______.
【简答题】今年5月18日,英美科学家公布了人类第一号染色体的基因测序图,这个染色体是人类 “生命之书”中最长也是最后被破解的一章,据报道,第一号染色体有2.23亿个碱基对,2.23亿这个数用科学记数法可表示为 [ ] A 2.23×10 5 B.2.23×10 6 C.2.23×10 7 D.2.23×10 8