皮皮学，免费搜题
登录
搜题
【单选题】
氧气瓶内的气体不能完全用尽，应留有余压0.1～0.3MPa，使氧气瓶内保持正压，防止空气进入（）。A.
降低氧气的纯度
B.
降低氧气的压力
C.
增加氧气的压力
D.
保持瓶内压力
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【简答题】The paper that we are using each day starts as wood on a tree very far from here. Men and machines make the wood into paper in a factory, which people have to carry by trucks and put into stores. At e...
【单选题】I can’t cancel my arrangement at such a short __________, for I have already announced it to everyone concerned.
A.
. warning
B.
. information
C.
. notice
D.
. schedule
【单选题】患者男性,43岁,左侧咽痛伴放射性耳痛4天,已行抗感染治疗3天,未见明显好转,查体:右侧扁桃体充血,表面可见脓苔,向中线移位,腭舌弓隆起,悬雍垂水肿,左侧下颌角淋巴结肿大。 该患者最准确的诊断为:
A.
急性化脓性扁桃体炎
B.
咽旁间隙脓肿
C.
咽旁间隙肿物
D.
扁桃体周围脓肿
E.
扁桃体恶性肿瘤
【简答题】The paper that we are using each day starts as wood on a tree very far from here. Men and machines make the wood into paper in a factory, which people have to carry by truck and put into stores. At ev...
【单选题】关于急诊护理工作的特点，下列哪项不是
A.
急，发病急骤来势凶
B.
忙，各种急症量和质的程度不可预测
C.
病种单纯，多以创伤为主
D.
易感染性，病人来者不拒
E.
涉及法律及暴力事件多
【简答题】默写瓦里斯公式: ; ;
【单选题】We discussed only such problems ___ concerned everyone of us.
A.
that
B.
what
C.
as
D.
whether
相关题目：
参考解析：
知识点：
题目纠错 0
发布
