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EXPLORATIONS -April 3, 2002: Spacesuit History By Paul Thompson VOICE ONE: This is Mary Tillotson. VOICE TWO: And this is Steve Ember with the VOA Special English program EXPLORATIONS. Today we tell a
The study of a solar-powered blood pressure monitor finds it can be an effective tool in places where electricity and even batteries can be in short supply. A study in Africa found the monitors to be affordable and accurate. High blood pressure is a
The device is a tiny sensor, implanted through a catheter in the heart's pulmonary artery. The procedure takes just seven minutes. The patient passes a wand over his chest, collecting data on heart pressure. That data is sent electronically to the do
6. Smiling Lowers Your Blood Pressure When you smile, there is a measurable reduction in your blood pressure. Give it a try if you have a blood pressure monitor at home. Sit for a few minutes, take a reading. Then smile for a minute and take another
微笑面对自己的理由(下) 6. Smiling Lowers Your Blood Pressure When you smile, there is a measurable reduction in your blood pressure. Give it a try if you have a blood pressure monitor at home. Sit for a few minutes, take a reading. Then
Fine, captain, but now we come to a genuine difficulty. You're able to lie flush with the surface of the ocean, that I understand. 对,船长,可是这里有实际的困难。这样,您可以使船面跟洋面一致,我可以理解。 But low