题目

某药品说明书中标有:本品每克含碘150毫克、镁65毫克、锌1.5毫克、锰1毫克。这里的碘、镁、锌、锰是指  A．原子  B．元素    C．分子  D．离子             (     ) 答案：B—Do you know the penguins are in danger now?—I’ve heard the news. We must these cute animals.A.protectB.collectC.connectD.pollute