货船舱底排水设备至少应配备与主舱底排水系统相连接的。()
A、2台动力泵
B、1台动力泵
参考答案:A
男性,65岁。突发心前区疼痛10小时,心电图示V1~V6导联有病理性Q波,ST段弓背向上抬高,T波倒置。入院查体:BP150/90mmHg,心率80次/分,律齐。
入院后心电图提示频发室性期前收缩,最有效的治疗措施是()
A.直流电复律
B.按压颈动脉窦
C.静脉滴注阿托品
D.静脉滴注利多卡因
E.植入临时性人工心脏起搏器
用 a, an, the, some, any填空。
1. I have ______ alarm clock.
2. The books are on______desk.
3. Look at______plant. It's very nice.
4. I need______ID card.
5. I can see______ photo on the wall.
6. Can I ask you ______ questions?
7. We don't have______ CDs.
8. ______ keys are in the drawer.
9. I have ______friends.
10. Are there______boys in the classroom?