For the tension test of carbon steel, which of the following values is the highest（）
A. Yield stress
B. Tensile strength
C. Proportional limit
D. Elastic limit
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CAD的英文全称是（）
A. Computer Aided Drawing
B. Computer Aided Plan
Computer Aided Graphics
D. Computer Aided DeSign
Which of the following are characteristics of the steel structure（）
A. High strength and low weight
B. Good plasticity and toughness
C. Easy to manufacture and construct
D. Weak corrosion resistance
The official price of golds in terms of the national currency is known as（）
A. the convertibility factor
B. the exchange rate
C. the mint parity rate
D. the mint stock rate
Which of the following organizations was NOT the result of the Bretton Woods Conference in 1944（）
A. the League of Nations
B. the General Agreement on Tariffs and Trade
C. the International Monetary Fund
D. the International Bank for Reconstruction and Development
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