焦油加工的主要任务是获得酚、萘、蒽等纯产品和()等粗产品。
参考答案:洗油沥青
阅读短文,判断下列句子正(T)误(F)。
This is a big room. There is a bed, a chair, a desk and a TV in it. The chair is beside the desk.
They're in front of the bed. There is a pen and a book on the desk. The TV is next to them. Tom's shoes
are under the bed and his football is on the bed. There is a map on the wall.
( ) 1. The room is very big.
( ) 2. The TV is on the desk.
( ) 3. The football is under the bed.
( ) 4. The chair is in front of the desk.
( ) 5. Maybe this is Tom's room.
病历摘要:患者男性,62岁。患胆石症拟行胆囊切除和胆总管探查术。检查发现患有冠心和心绞痛。病人主诉偶有心悸、心跳不规则血压180/110mmHg,脉搏106次/min血生化检查提示:空腹血糖8.0mmol/L,血清钾3.9mmol/L,胆固醇4.6g/L。病人双亲均在50多岁时死于心脏病。
下列哪些因素可加重该病人的心律失常()
A.全麻诱导
B.气管插管
C.低血钾
D.10~15cmH2O的气道压
E.麻醉维持中的高血压