【判断题】The United States of America consists of 50 states and a federal government. ________
【单选题】某电气设备上有Ex ia IIC T4字样,说明它是()。
【判断题】“蝙蝠、牡丹、双钱”的剪纸寓意是“富贵双全”。
【单选题】Which of the following statements are correct? I. The average economic growth rate in real GDP per person in the United States over the last century was 5 percent per year. II. The United States has...
【简答题】country Chinese translation 1. China a. 法郎 2. The United States b. 人民币元 3. The United Kingdom c.美元 4. Russia ...