问题
选择题
It took a great deal of courage to admit that all his efforts had been ____.
A．in vain
B．in turn
C．in return
D．in danger
答案
答案：A
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It took a great deal of courage to admit that all his efforts had been ____.
A．in vain
B．in turn
C．in return
D．in danger
答案：A
下列图表反映出的经济现象说明(单位：亿元)
| 年份 | 农业 | 工业 | 社会总产值 |
| 1949 | 326 | 140 | 557 |
| 1953 | 510 | 450 | 1 241 A．社会主义建设事业蒸蒸日上，成绩斐然 B．国民经济迅速恢复和发展 C．过渡时期总路线规定的任务已完成 D．工业落后面貌开始改变 |