第3题: [单项选择]Passage Two Questions 29 to 32 are based on the passage you have just heard. A. They are less intelligent. B. They are less moral. C. They are more numerous. D. They often speak a non-English language at home. 参考答案:D 答案解析:[听力原文] Why do minorities create an educational problem in America
由文中的The existence of la
第4题: [单项选择]蛋黄中水分的平均含量是()。 A. 4% B. 12% C. 36% D. 86% 参考答案:B
第32题: [多项选择]一个8位逐次逼近型模数转换器,若最大输入电压为+10V,则下列分析正确的是()。 A. 该A/D转换器的最小分辨电压为19.5mV B. 该A/D转换器的最小分辨电压为39mV C. 当输入模拟电压为6.5V时,输出结果为10100111 D. 当输入模拟电压为6.5V时,输出结果为10110111 参考答案:B, C