扫描仪驱动程序必须符合()标准。
A、ISO
B、IEEE
C、WINDOWS
D、TWAIN
参考答案:D
— How many people are there ____________ your family?
— There are five.[ ]
A. from
B. in
湿肺、气胸病人,开胸手术麻醉不宜选用()
A.哌替啶
B.氯胺酮
C.N20
D.硫喷妥钠
E.依托咪酯