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You have known that there are two kinds of snake venom. In
You have known that there are two kinds of snake venom. In addition, you had better know about their symptoms in order know what kinds of snake venom ...

When you become a doctor, in certain situation, you have to
When you become a doctor, in certain situation, you have to determine what kind of snake it is just by looking it at in a short time. So this time, w...