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【多选题】
下列关于钙拮抗剂治疗心绞痛的叙述哪些是正确的
A.
维拉帕米与普萘洛尔合用要谨慎
B.
硝苯地平对各型心绞痛均适用
C.
硝酸甘油不宜与钙拮抗剂合用
D.
钙拮抗剂与B受体阻断药合用可增加疗效
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普肯耶纤维位于内皮下层
B.
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C.
心房与心室的心肌不直接相连续
D.
心外膜为浆膜
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B.
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A.
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