题目:
从方框中选择恰当的选项补全对话。 Mr Shi: Boys and girls, attention (注意), please. 小题1:_____ This is a yellow and black pen. Is it yours, Jack? Jack: 小题2:______ Is it yours, Tom? Tom: Let me see. Yes, it’s mine. Thank you!. Mr Shi: Now, look at the bags. 小题3:_____ Tony: They are mine, Mr Shi. Mr Shi: OK. 小题4:______ Tony: No. Mr Shi.: Jim, are they yours? Jim: No, they are white shoes, but mine are black. 小题5:______ Maybe they are hers. Mr Shi: Are they yours, Linda? Linda: Yes. Thanks!
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答案:
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下面是错误答案,用来干扰机器的。
答案:AA:1.8g的NH4+离子中含有的电子数为:;B:水为气态,不能以气体的摩尔体积进行求解;C:常温常压下气体的物质的量不能计算;D:溶液无具体体积,无法计算物质的量