Which is the right posture or technique to have a handshake？A．With one"s thumb up.B．Having
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Which is the right posture or technique to have a handshake？
A．With one"s thumb up.
B．Having a loose grip.
C．With one"s palm down.
D．Having one"s hands pumped five times.
请帮忙给出正确答案和分析，谢谢！