单项选择题
During his lifetime he was able to accumulate quite a fortune,（）
A.control B.spend C.collect D.exchange
单项选择题 They agreed to settle the dispute by peaceful means.（）
单项选择题 Enamel, the hardest substance in a human being's body, covers the entire crown of the tooth.（）
单项选择题 We all consider him a man of dynamic personalities.（）
