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问题 单项选择题

蓄电池的终止电压是指（）。

A：蓄电池放电时所能达到的最低电压

B：蓄电池充电时所能达到的最高电压

C：蓄电池放电到能反复充电使用的最低电压

D：蓄电池充电到反复放电使用的最高电压

答案

参考答案：C

单项选择题

2008年1月17日，在美英、欧盟等国家的支持下，在俄罗斯等国家的反对声中，科索沃议会举行特别会议，通过了科索沃独立而言，科索沃宣告独立。2008年1月16日，欧盟27个成员国正式通过向科索沃派驻文职使团的决议，科索沃正式宣布独立后，欧盟使团将在随后的120天过渡期内，从联合国特派团手中接管相关任务。下列选项哪一项是正确的

A．欧盟27个成员国向科索沃派驻文职使团是对科索沃国家的承认

B．欧盟27个成员国向科索沃派驻文职使团是对科索沃政府的承认

C．欧盟27个成员国向科索沃派驻文职使团不构成对科索沃国家或者政府的承认，是对科索沃国家实行自治管理提供帮助

D．欧盟27个成员国向科索沃派驻文职使团是承认科索沃为独立国家的必要步骤
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单项选择题

· AC Milan star Kaka says a foot injury is still stopping him from returning to football. He has not played for 32 days. Kaka says he is in a lot of pain. "I hurt myself in an area that we always put pressure on." Kaka once played for a year with a knee injury, but the 26-year-old said this is much worse.
· British actress Emma used to spend more time filming than at school. But today she is ready to pay more attention to her studies. This 19-year-old girl will start at the Yale University in the autumn. "I always loved school. I just want to go back and find what else there is," she said.
· Chinese 25-year-old sports star Liu Xiang returned to Shanghai in March. He had a successful foot operation in December in Houston, and spent the next three months there for recovery and basic training. It is said that a group of doctors are ready to help with Liu’s recovery.
· Russian great tennis player Sharapova will not he playing in the MPS Group Championships, which begins in the US on Monday. Sharapova was missing the Sony Ericsson Open the week before last in Miami. She may continue training for the WTA Rome event at the beginning of May.

Among the four persons, ______ isn’t a spoils star.

A．Sharapova

B．Liu Xiang

C．Emma

D．Kaka
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