男性,3岁,Fallot四联症患者,查体:口唇发绀,该患者的发绀属于
A. 肺性发绀
B. 心性混合性发绀
C. 淤血性周围性发绀
D. 缺血性周围性发绀
E. 混合性发绀
查看答案
Which of the following is a bordering neighbor of Yugoslavia
A. Slovakia.
B. Greece.
C. Albania.
D. Belgium.
“政府活动扩张法则”的指出者是( )。
A. 皮考克.
B. 马斯格雷夫
C. 瓦格纳
D. 鲍莫尔
What does the phrase "taken with a barrel of salt" mean at the end of the second paragraph
A. "Suspected".
B. "Justifiable".
C. "Inconsistent".
D. "Ignored".
The rods of our eyes see ______.
A. colors
B. black and white
C. both colors and black and white
D. visible wavelength colors