如图所示是一个能吹出冷热风的电吹风简化电路图，图中A是吹风机，B是电热丝，则下列分析正确的是(  )

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用所给词的适当形式填空
（1）I’d like to visit Beijing because the people there are very ____  (friend).
（2）The oranges come from ____ (south) China.
（3）What other____  (language) do you like? 
（4）There ____  (be) lots of meat in the ice box.
（5）How many ____  (box) of apples would you like? 

试写出﹣2x²y的一个同类项，则这个同类项可以是____( 写出一个即可）

干流像一个巨大的“几”字的河流是（　　）