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【单选题】
风湿热患者出现心脏损害的主要原因是()。A.
链球菌O介导的心脏组织的直接损伤
B.
白喉毒素侵犯心肌细胞和神经细胞
C.
破伤风痉挛毒素侵犯心瓣膜和神经细胞
D.
由抗链球菌抗体与心瓣膜抗原结合引起的免疫损伤
E.
细菌在心瓣膜上生长繁殖
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【简答题】葡萄球菌的毒素有 ( )。A. α 溶血素 B. 表皮剥脱毒素 C. 肠毒素 D. TSST-1 E. E 、 血凝素
【单选题】The rapid development of laser techniques means that ______.
A.
in another ten years we shall be able to cure cancer
B.
surgery is likely to improve considerably
C.
we shall be able to treat all the diseases we suffer from
D.
we are now able to treat most forms of cancer
【简答题】Let's take the train there near the bank, __________ we? [A] will [B] won't [C] shall [D] shan't
【简答题】我国反不正当竞争法规定:经营者在市场交易中，应当遵循自愿、平等、公平、__________的原则，遵守公认的商业道德。
【单选题】What encouraged the writer to give up smoking?
A.
Something he had heard.
B.
His bad health.
C.
Something he had read.
D.
Something his wife told him.
【单选题】患者，男，39岁，反复出现上腹部烧灼感伴反酸1年，近半个月来加重并出现恶心、呕吐等症状，胃镜检查发现胃窦部溃疡，十二指肠球部变形。最可能的诊断为
A.
胃多发溃疡
B.
幽门管溃疡
C.
十二指肠溃疡
D.
复合性溃疡
E.
难治性溃疡
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