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Have you ever gotten a letter in the mail about a new toy? Or perhaps a phone call about a special deal on candy? This is all part of something called direct marketing. It's a way businesses talk straight to you. They want to tell you about their products. They hope you will buy them. We will learn ...

Have you ever wondered how your phone remembers all your friends' numbers? It's a bit like magic, but it's really clever technology. We carry around tiny chips in our phones. These chips are called SIM cards. They help us connect to the mobile network. They also store very important information. Let ...

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哪些行业从 Google PPC 潜在客户开发中获益最多？

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