______ about “the God Particle” that Jude decided to search for as much information as possible about it.

A．Such curious he was

B．So curious he was

C．So curious was he

D．Such curious was he

有一单缝宽口a=0.10mm，在缝后放一焦距为50cm的会聚透镜，用波长久：λ=546.1nm的平行光垂直照射单缝，则位于透镜焦平面处的屏幕上中央明纹的宽度是（）。

A．5.46×10^-3m

B．5.46×10^-2m

C．2.73×10^-3m

D．2.73×10^-2m