The Chinese are _______ for their diligence and courage.
A well B singular C distinguished D professional
上期答案
The arms （） is the competition between countries in building up their stocks of weapons.
A. race B. rush C. movement D. expansion
本题意思：军界竞争是国家之间加强武器装备建设的竞争.
arms race是"军备竞争"的固定说法,故只能选A