题目

 下列有关金属元素特征的叙述正确的是(     ) A．金属元素的原子只有还原性，其阳离子只有氧化性 B．金属元素的单质在常温下都为固体 C．金属阳离子被还原不一定得到金属单质 D．含金属元素的离子都是阳离子 答案：CELOS ANGELES, the US Los Angeles Superior Court Judge Mitchell Beckloff ruled Michael Jackson,s father canreceive some medical records related to his superstar son,s death． The judge will review the records first before making them accessible to Joe Jackson,slawyer，Brian Oxman．Beckloff said the man can only receive records on or after June 25一the day Michael Jackson died．VANCOUVER，CANADA World number one Zhou Yang overcame three South Korean players to win the women,sshort track speed skating 1,500 meters final at the Vancouver Olympic Winter Games． The l8-year-old made perfect debut(首次亮相)as she set an Olympic record of a winning timeof 2 minutes and l6,993 seconds among other seven skaters． China has never won the women,s l,500 meters in the Olympics before，and this time Zhou,sperformance gave China its third gold medal in Vancouver．BElJING，CHINA China,s first compulsory,(强制性的)safety regulation on primary school buses，which re-quires every seat to have a seat belt，will take effect on July l to help ensure safer transporta-tion for the country,s 100 million students． Each primary school bus must also be equipped with a“black box，”0r a recording monitor，to record speed，travel time and distance．Also，the bus must be staffed by teachers who willensure student safety． In addition，the new rule states that the color of the school buses should be yellow，and each bus must have at least two emergency exits．Texas，the US A software engineer who crashed his plane into a Texas building housing a United Statestax agency office，killing himself and at least one worker，apparently left behind an angry anti-government manifesto(宣言) detailing his financial difficulties and tax problems． The pilot took off from an airport in Georgetown．about 48 km from Austin．He flew lowover the Austin skyline before plowing into the building．57．We can learn from the first news that_________． A．all Michael Jackson,s medical records can be accessed B．Mitchell Beckloff will not go over the record first C．medical records before June 25 won,t be received D．Joe Jackson,s lawyer will not get any records58．The new school bus safety rules include all the followings EXCEPT_____________. A．the driver,s experience    B．the equipment of the bus C．the color of the bus      D．emergency exits 59．It seems the software engineer crashed into the US tax office mainly because of___________. A．unhappy marriage    B．mental disease C．heavy work pressure D．financial and tax problems 60．We can infer from the news that____________. A．Joe Jackson will be the first to receive the medical records B．Zhou Yang once broke the Olympic records in the same event C．the tax agency office is somewhere inside the building in Texas D．the software engineer flew high over skyline before crashing into the building