题目内容

按逻辑功能划分，触发器可以分为触发器、触发器、触发器、触发器四种类型。

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触发器有两个输出端，正常工作时两端的状态互补，以端的状态表示触发器的状态。

Look at the following statements fromText B and decide which are facts (F) and which are opinions (O).Perhaps the greatest change the world has seen in modern times has been the rise of the Internet.

It's a great way to keep up with friends.

Internet access and the ability to make good use of it is practically a must for success in the modern world.