In the heart of Patagonia area, glaciers rise in the midst of mountain capes and alpine meadows, close enough to hike right up to and （ ）.

填空题

In the play the heroine expired（ ）a broken heart.of

答案解析

单选题

The ________________ is the “natural” pacemaker of the heart; the node is specialized cells in the top right atrium which produces the electrical impulses that travel down to eventually reach the ventricular muscle allowing the heart to contract.

答案解析

单选题

In the heart of Patagonia area, glaciers rise in the midst of mountain capes and alpine meadows, close enough to hike right up to and （ ）.

答案解析

单选题

In low and middle income countries, heart disease and cancer get much of the attention given to ______ diseases.

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多选题

In ______ review of 44 studies, American researchers found that men and women who ate six key foods daily cut the risk of ______ heart disease by 76%.

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