第2题: [单项选择]What is the regulation regarding the raising of the American national flag() A. It should be raised by soldiers. B. It should be raised quickly by hand. C. It should be raised only by Americans. D. It should be raised by mechanical means. 参考答案:B 答案解析:
本题的关键是听清should be raised前后的内容。短文中提到,升降国旗都需手工操作来完成,故选B。