活性酸
参考答案:
指的是与土壤固相处于平衡状态的土壤溶液中的H+离子。
根据句子的意思及所给首字母,写出单词的正确形式。
1. Don't go out. The rain is p__________ down.
2. Don't worry. Mr Hu will be a__________ to help you work out this Maths problem.
3. My cousin's hobby is c__________ stamps.
4. Many v__________ come to see the Great Wall every day.
5. One of my friends won an a__________ for his article last year.
6. Thank you for o__________ a school trip.
7. —Do you know the r__________ of the match?
—Yes, it's 2: 1.
8. Different people have different kinds of a__________.
9. Fire is very d__________, so you have to think of your own s__________ when you play with fire.
10. Mr Green fell off his bike and hurt h__________ last week.
患者,男,因左鼻腔出血半小时急诊入院,检查见左鼻腔出血,较剧烈,BP180/105mmHg,HR110次/分。
行颈外动脉结扎后,鼻腔仍间断剧烈出血,下列治疗措施错误的是()
A.继续应用止血剂治疗
B.行颈内动脉结扎
C.正在出血时,即在鼻内镜下寻找出血点,找到后给予射频或电凝止血
D.继续行前后鼻孔填塞
E.行筛前、筛后动脉结扎
F.监测血压,保持血压稳定