两框一斜线，定是垂直面；斜线在哪面，垂直哪个面（）
参考答案：对
A neonate receives an Apgar score at 1 and 5 minutes after birth. The 5-minute Apgar score is more predictive for which of the following
A. Residual neurologic damage.B. Residual respiratory depression.C. Congenital heart defects.D. Gestational age of the neonat
消解样品时，最终应消解至样品变白，消解液的颜色呈（）为止。
A.褐红色
B.淡黄绿色
C.深绿色
