Generally speaking, for high-speed local area networks with large volume, which should be selected in order to obtain higher performance among following media?
A、Coaxial cable
B、Optical Fiber
C、Twisted pair
D、Wireless

先天性心脏病合并脑栓塞的是（ ）A．室间隔缺损 B．房间隔缺损 C．动脉导管未闭 D．动脉瓣狭窄 E．法洛四联...

单项选择题先天性心脏病合并脑栓塞的是（ ）

关于肺结节的影像学检查，下列说法正确的是 A、X线能够提高肺癌的检出率，故推荐X线胸片用于肺结节的常规评估 B...

单项选择题关于肺结节的影像学检查，下列说法正确的是
A、X线能够提高肺癌的检出率，故推荐X线胸片用于肺结节的常规评估
B、低剂量肺CT检查已经成为健康体检的重要项目
C、薄层(≤2mm层厚)的胸部CT可更好地评价肺结节的形态特征，分析肿瘤体积
D、PET-CT作为一种功能显像手段，是重要且常用的影像学手段

Prior to the late 1880s, most of us were so busy _____ ...

单项选择题 Prior to the late 1880s, most of us were so busy _____ to make a living that we didn’t care what the other people were doing