制冷量不足,降温慢的错误处理方法是()。
A.清洗吸气过滤器
B.排放空气
C.排除多余的制冷剂
D.清洗干燥过滤器
参考答案:C
He ______ to the party this evening if he has to look after his younger sister. [ ]
A. needn't to come
B. doesn't need to come
C. doesn't need come
D. needs not come
男性,67岁。晚饭后散步时突感胸骨后压迫性疼痛,伴出汗,持续1小时不缓解。查体:呼吸28次/分,血压80/50mmHg(10.7/6.7kPa),神志淡漠,口唇发绀,四肢冰凉,脉搏细弱。双肺腋中线后可闻及细小湿性啰音,心率110次/分,可闻及室性奔马律。心电图见Ⅰ、aVL、V1~V6ST段水平压低达0.3mV。
以下诊断较准确的是()
A.气胸
B.急性前壁心肌梗死
C.急性心包炎
D.急性非ST段抬高性心肌梗死
E.急性肺栓塞