患儿11岁，2周前出现右膝部间歇性疼痛和肿胀，拒按，休息后不缓解，且逐渐出现轻度跛行

疾病预防控制机构及其执行职务的人员发现传染病病人或疑似病人向有关部门的报告属于（）

A.传染病通报

B.传染病监测

C.传染病责任报告人

D.传染病义务报告人

E.传染病疫情公布

出血后，血小板的不可逆性聚集是由于

A．受损组织释放ADP

B．受损组织释放ATP

C．血小板释放内源性ADP

D．血小板释放ATP

E．血小板释放PF3

由于二氧化碳灭火剂本身具有不燃烧、易于汽化等特点，所以被用作灭火剂。

句型转换(每空一词)。

1. To understand their accents is really difficult. (用it作形式主语改写句子)

     ______ ______ really difficult ______ ______ their accents.

2. Jay is a singer and he is also an actor. (改为同义句)

    Jay is ______ ______ a singer ______ ______ an actor.

3. You can find shops here and there in this street. (改为同义句)

    Shops can _______ ______ ______ in this street.

4. The teacher suggested walking there. (对划线部分提问)

    What ______ the teacher ______ ______?

5. He gave away the old computer. (对划线部分提问)

    What did he ______ ______ the old computer?

引入引出电缆压线板未压紧电缆，用单手扳动喇叭嘴上下左右晃动时有明显晃动不属于失爆。