【多选题】下列哪些是实施复合麻醉时要掌握的基本原则
C.
静脉全麻期间要保证呼吸道通畅,除短小手术外,均应气管内插管
D.
静脉维持用药应选半衰期短.代谢快.体内不再分布和苏醒快的药物
E.
在实施静吸复合麻醉时都要以静脉用药为主,吸入为辅的原则
【单选题】Cashier: That's $ 55.45 all together. ________ Customer: I'm sorry, but am I short-changed? I gave you $ 70.
A.
These coins are for you, thank you.
B.
Here's your change, thanks.
C.
Can you pay the bill, now?
D.
This is the money back to you, thanks.
【单选题】一辆汽车在平直公路上做刹车实验,若从 0 时刻起汽车在运动过程中的位移与速度的关系式为 x = (10 - 0.1 v 2 ) m ,则下列分析正确的是 ( )
【单选题】Customer:__________ Waiter: I‘m sorry. Didn‘t you order fried shrimp(虾子) ? Customer: I ordered fried chicken. Waiter: Oh, all I heard was fried shrimp. Let me have kitchen redo this for you.
A.
Sorry, this isn' t my dish.
B.
Excuse me, this isn' t what I paid for.
C.
Sorry, this isn' t my order.
D.
Excuse me, this isn't what I ordered.
【单选题】如图所示,两硅稳压二极管的稳压值分别是3V和6V,如果输入电压为8V,则输出电压 为
【单选题】稳压二极管稳压电路中,输入电压为9V,稳压二极管稳压值为6V,限流电阻为500欧,则电阻上流过的电流为( )。
【多选题】下列哪些是实施复合麻醉时要掌握的基本原则
C.
静脉全麻期间要保证呼吸道通畅,除短小手术外,均应气管内插管
D.
静脉维持用药应选半衰期短、代谢快、体内不再分布和苏醒快的药物
【判断题】档案窃蠹成虫蛀入食物内部危害,虫道条沟状,宽3mm左右。