至妊娠32~34周血容量约增加:()
A.10%
B.30%
C.30%~45%
D.35%
E.50%
参考答案:C
对于幻灯片中文本框内的文字,可以采用“()”菜单中的“()”命令设置项目符号。
The beacon located on board aircraft is termed().
A.EPIRB
B.PLB
C.ELT
D.MCC