How far is the middle sea race round the trip?
A．670 miles.
B．706 miles.
C．607 miles.

What activity is to be banned in Wales and England?A．The open display of tobacco in shops.B．Smoking ban in public.C．A robust tobacco control plan.

A.The
B.
B．Smoking
C.
C．A
D.

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（）与相对论一起构成了现代物理学的理论基础。

A.量子力学
B.电子
C.三大守恒定律
D.放射线

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