小儿脱水性质不明时,第1天静脉补液可选用()
A.1/4张含钠液
B.1/3张含钠液
C.2/3张含钠液
D.1/2张含钠液
E.4:3:2溶液
参考答案:D
I sing songs. I am a _____________. [ ]
A. sing
B. singer
C. sang
下列哪种疾病可出现周围性发绀
A.慢性阻塞性肺气肿
B.肺水肿
C.大量胸腔积液
D.右心衰竭
E.Fallot四联症