NA为阿伏加德罗常数的值，下列说法正确的是

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N_A为阿伏加德罗常数的值，下列说法正确的是（）

A：16g甲醇（CH₃OH）中存在的共价键总数为2N_A

B：标准状况下44.8LNH₃溶解于水形成的1L溶液中，OH^-总数少于2N_A

C：71g氯气与足量的NaOH反应，转移的电子总数为2N_A

D：1L1.5mol·L^-1的Al₂（SO₄）₃溶液中，Al³⁺数为3N_A

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B

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根据短文内容，从各题所给的A，B，C，D四个选项中选出最佳选项。

Christmas is coming. Stephen can see it everywhere he 1 There are Christmas things to sell in the shops and Christmas trees in the park. But it is only in late 2 . Stephen thinks this is wonderful. He likes Christmas very much. To celebrate it for a month is not enough.

He went into a clothes shop to buy 3 . He found a perfect (完美的) pair.

"Just these, sir?" asked the shop assistant.

"Yes, please," 4 Stephen.

"They look a little big for you. Are you sure they will 5 ?" asked the shop assistant.

"Oh, they will be fine," said Stephen,

It was 6 the trousers were a little big. But they 7 to be. Every Christmas Stephen 8 as Father Christmas and works in the local shopping mall. Children like to take photos with him.

Stephen walked out of the 9 and smiled happily. What 10 he do this Christmas?

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