题目内容
上电复位电路的工作原理是依靠电容的充放电来实现复位的。
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快递服务大体上分为国内快递业务和国际及港澳台快递业务两类。这两类业务除了覆盖地理范围与进出口要求不同外,在另外三个方面大致相同,不包括: ( )
包裹类快件不包括( )。
( )国际快递服务可采用代理报关办法。
Good morning, everyone. It’s my honor to introduce1(whom?) to you. Professor Waters is from 2(which country?). She will teach us English 3 (when?). Professor Waters is an experienced teacher. She has taught English 4 (where?). She is a very good teacher and she is really an expert in 5(what?). She is the author of 6 (what?) in this field. So, it is a pleasure for us to have her as 7(who?) here. Now, let’s welcome her to say 8(what?) to us!
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