以下哪幅图显示心房扑动?
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④http://p.ananas.chaoxing.com/star3/375_1024/25789a1dd98791b47e7cecdabd4e402d.jpghttp://p.ananas.chaoxing.com/star3/375_1024/98b20992ba36b0ec8a0d57c36d89949f.jpghttp://p.ananas.chaoxing.com/star3/375_1024/47be1bdbf679e260713f9bd6a0adf168.jpghttp://p.ananas.chaoxing.com/star3/375_1024/f1f612d1917431028d3f1460da5119fb.jpg
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④http://p.ananas.chaoxing.com/star3/375_1024/25789a1dd98791b47e7cecdabd4e402d.jpghttp://p.ananas.chaoxing.com/star3/375_1024/98b20992ba36b0ec8a0d57c36d89949f.jpghttp://p.ananas.chaoxing.com/star3/375_1024/47be1bdbf679e260713f9bd6a0adf168.jpghttp://p.ananas.chaoxing.com/star3/375_1024/f1f612d1917431028d3f1460da5119fb.jpg
举一反三
- 剧照出自哪部电影http://p.ananas.chaoxing.com/star3/375_1024/21957e0bf04ac0af363ad1687e5b394e.jpeg
- 下图所示机构自由度计算,( )是正确的。 A: mg src="http://p.ananas.chaoxing.com/star3/origin/cb07ca0fb12be985c301490389c1e187.jpg" B: F=3×7 –(2×9 + 2 – 2)– 2 = 1 C: F=3×7 –(2×9+ 2– 0)– 0 = 1 D: F=3×7 –(2×8+ 2 – 0)– 2 = 1 E: F=3×5 –(2×6+ 2– 0)– 0 = 1
- 请按图示，回到课程章节完成测试题。https://p.ananas.chaoxing.com/star3/375_1024/ae09810fed36ce18c49a30dcd0bf53f9.jpg
- 根据下列条件判断，框架柱首层Hn为mmhttps://p.ananas.chaoxing.com/star3/375_1024/eb6a3fa6a4aa0fd6f330309fe2554788.png
- 下图中，电压V，V,V,V,V。/ananas/latex/p/221724https://mooc1.chaoxing.com/ananas/latex/p/530112https://mooc1.chaoxing.com/ananas/latex/p/520519https://mooc1.chaoxing.com/ananas/latex/p/1142097https://mooc1.chaoxing.com/ananas/latex/p/1142085https://p.ananas.chaoxing.com/star3/origin/e6966ea20ac0a61450b9979c6123d0eb.png