装载油料的油轮(驳)停靠码头15分钟后卸油,是为了()。
A.导除静电
B.准确测量油高
C.导除静电和准确测量油高
D.导除静电和准确测量油高、水高
参考答案:D
Read and choose.
( )1. What's the matter?
( )2. How tall are you?
( )3. How heavy is your sister?
( )4. How do you get to the zoo?
( )5. Who is taller?
A. She's 50 kg.
B. 170 cm.
C. My brother is taller than me.
D. I have a fever.
E. By car.
麦角新碱用于治疗产后子宫出血的主要机理是:
A.促进凝血过程
B.使子宫平滑肌强直收缩,压迫血管
C.直接收缩血管
D.促进血管修复
E.促进子宫内膜脱落