【单选题】患者,男,43岁,因胸前区痛就诊,心电图:ST段呈弓背向下型抬高;诊断为心绞痛,给予硝酸甘油,此药口服后血中药物浓度达不到治疗作用,必需舌下给药,是因为 :
【单选题】下列各题去括号所得结果正确的是( )
A.
x 2 -(x-y+2z)=x 2 -x+y+2z
B.
x-(-2x+3y-1)=x+2x-3y+1
C.
3x-[5x-(x-1)]=3x-5x-x+1
D.
(x-1)-(x 2 -2)=x-1-x 2 -2
【单选题】-Tomorrow is Father’s Day. What’s your surprise for your father? -The first thing ___________ I will do is to make a card for him.
【判断题】气路系统是一个载气连续运行的密闭管路系统。其作用是提供干净、干燥、流速稳定的载气。常用的载气为氮气和空气。
【简答题】When
I meet someone for the first time, one of the first questions I ask is: “What’s
your favorite hobby?” Most people just look at me and aren ’ t too sure if they even have a
hobby. Some people even...
【单选题】硝酸甘油口服后血中药物浓度达不到治疗浓度,必须舌下给药,这是因为该药( )
【单选题】Dialogue Two Steve: Francesca, what’s your favourite piece of music, would you say ? Francesca: I think it’s 'Pie Jesu' by Andrew Lloyd Webber. Steve: Really ? Francesca: ___5____ Steve: When did you ...
A.
Um...about 1953. I think, when I was eighteen.
C.
Yeah, I really like that.
D.
Actually, I don't like it that much.