2011-02-11 16:20:38

2011-02-11 16:20:20

2011-02-11 15:32:35

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2011-02-11 15:31:49

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孕妇愉悦的情绪可促使大脑皮层兴奋，使孕妇血压、脉搏、呼吸、消化液的分泌均处于相互平稳、相互协调状态，有利于孕妇身心健康，改善胎盘供血量，促进腹中胎儿健康发育。

2011-02-11 15:31:00

2011-02-11 15:30:54