单项选择题
A. They were persuaded to save for a rainy day. B. They were persuaded to increase their income. C. They were persuaded to spend money now.
A. The nation is obsessed with every little change on the stock market. B. The crash plunged the nation into the Great Depression. C. The economy was in depression long before the crash.
A. 13 million B. 30 million C. 30 billion