He is a student and needs a ____________ and a watch. [ ]
A. pen
B. dress
C. handbag
答案:A
将28周新生儿放入暖箱,湿度应该调至多少()
A.80%
B.70%
C.60%
D.50%
E.40%
野战条件下脾下极破裂的最合适的处理方法是()。
A.脾修补术
B.脾切除术
C.脾部分切除术
D.脾动脉结扎术
E.非手术治疗