心肌梗死是由于冠状动脉_1，血液_2引起的疾病，严重的危及生命。_刷题宝

题干

心肌梗死是由于冠状动脉____，血液____引起的疾病，严重的危及生命。

上一题下一题 0.0难度选择题更新时间:2015-03-27 11:25:44

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发生堵塞,凝固

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阅读短文,下列问题

Today is Saturday. It is Children's Day, I get up very early. I go to school at about six. Our school is very cleanand beautiful. Birds in the trees sing all the time. Every student wears a white coat. Girls wears beautiful skirts. We sing and dance, run and jump. We look like happy birds.

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