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问题 单项选择题

“全效”牙膏（）

A．主要含三氯羟苯醚和PVM/MA共聚体，还有氟化物，兼有控制菌斑、牙龈炎、牙石和防龋功效的牙膏

B．对降低牙本质过敏有作用的牙膏

C．可以降低牙釉质在酸中的溶解度和增强釉质再矿化，并预防龋病的牙膏

D．使用安全、有效，无明显副作用，但长期使用可使牙齿变色的牙膏

E．其活性成分是一种氧化剂的牙膏

答案

参考答案：A

判断题

发行人进行重组的，应当按照《证券期货法律适用意见第3号》所规定的重组方式进行。 ( )
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填空题

Beijing: The United States and North Korea had their first ________in four months here this afternoon as part of the ________negotiations on how to end North Korea’’s nuclear program, but diplomats played down prospects for________.James A. Kelly, assistant________, and Kim Yong II, North Korea’’s deputy foreign minister, met ________of formal discussions, ________on direct dialogue that began after a stormy meeting ________in which North Korea warned that it was moving quickly to ________nuclear arms.The Bush administration had insisted ________that it would only hold talks with North Korea ________because, it argued, only ________pressure would persuade North Korea to________. It got its way when North Korea dropped its insistence on ________and agreed, after extensive efforts by China, to hold unusual simultaneous negotiations with ________,________,________and ________as well as the United States.Though Bush administration officials had not ________talking privately with the North Koreans during________, the fact that Mr. Kelly and Mr. Kim met on the first day was seen as a sign of ________by the American side.
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