a top student in his class is pressure for him.[ ]
A. Be
B. Being
C. Is
D. /
答案:B
船舶在水密度ρ=1.023g/cm3水域中的吃水为5.6m,则当驶入水密度ρ=1.004g/cm3水域时,船舶吃水约为()。
A.5.50m
B.5.63m
C.5.71m
D.吃水无法确定
综合布线系统中,NVP是指电缆的()。
A、回波损耗
B、远端串扰
C、近端串扰
D、额定传输速率