(判断题)28: He brought a prepared meal to school, which surprised the others. A: 对 B: 错 ...
(判断题)22: She favored that the sentimental mother breathed a relief A: 对 B: 错 ...
(单选题)16: You must () before making a decision. A: think it B: think it about C: think it of D: think it over ...
(单选题)10: You should () your friend to save you from the trouble. A: let B: be C: get D: make ...
(单选题)4: He father went to Shanghai on Business. He will be back (). A: in two weeks B: after two weeks C: for two weeks D: before two weeks ...
(判断题)18: ADC的分辨率是指使输出数字量变化一个相邻数码所需输入模拟电压的变化量。 A: 对 B: 错 ...
(判断题)12: D/A转换器是将模拟量转换为对应的数字量的器件。 A: 对 B: 错 ...
(单选题)6: 单片机响应中断的条件不包括( )。 A: 中断源有请求 B: 中断允许寄存器IE相应位置1 C: EA=1 D: EA=0 ...
(判断题)20: MCS-51系列单片机有单周期指令49条,双周期指令45条。 A: 对 B: 错 ...
(判断题)14: 访问程序存储器可以采用的寻址方式有寄存器间接寻址、立即寻址和变址寻址。 A: 对 B: 错 ...