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【单选题】
小儿肺部感染易引起肺间质性炎症是因为A.
呼吸中枢不健全
B.
肺血管丰富，间质发育旺盛
C.
下呼吸道口径小，纤毛运动差
D.
呼吸肌不发达
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【简答题】If you feel at present that you don’t have enough friends in your life，one reason may be that you have let yourself become too busy to make time for the relationships you already have．Starting and kee...
【简答题】路床是路面的基础,是指路面底面以下( )cm范围内的路基部分。
【简答题】If you feel at present that you don’t have enough friends in your life，one reason may be that you have let yourself become too busy to make time for the relationships you already have. Starting and ke...
【单选题】亚急性细菌性心内膜炎患者，做血培养时，采血量为
A.
亚急性细菌性心内膜炎患者，做血培养时，采血量为 A.2～4ml
B.
4～6ml
C.
5～8ml
D.
8～10ml
E.
10～15ml
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