【判断题】Pit No. 3 is located to the east of Pit No.1.
【单选题】设char s[10]; int j; 以下正确的表达式为
【多选题】二极管D1、D2的正向导通电压均为0.7V,三极管T1、T2的导通死区电压均为0.6V,针对下面电路表述正确的是()
A.
电路中,调节R2可调整T1、T2的静态工作点,减小交越失真
D.
经T3放大输出的正半周电压信号,经D1、D2的自举,耦合到T1的基极
【单选题】设 char **s ;以下正确的表达式是( )。
【判断题】Both Pit No. 3 and Pit No. 4 have not been completed.
【多选题】二极管D1、D2的正向导通电压均为0.7V,三极管T1、T2的导通死区电压均为0.6V,针对下面电路表述正确的是()
A.
。,则经T3放大后A点的电压波形为图中(2)所示形状。
B.
图中T3工作在甲类放大状态,T1和T2均工作于甲乙类放大状态。
C.
若T3基极输入电压波形为图中(1)所示,则T1放大图(1)中波形的负半周,T2放大图(1)波形的正半周。
D.
若T3基极输入电压波形为图中(1)所示,则放大后加到负载上的电压波形为图中(4)所示
【判断题】Pit No. 4 located between Pits No. 2 and 3.
【多选题】Which of the following is NOT right about Pit No. 4 ?
A.
Pit No. 4 was discovered much later, covering an area of about 5,000 square meters.
B.
Located between Pits No. 2 and 3.
C.
It appears to have been planned to house the central division and have more than 1,000 warriors.
D.
It was probably completed.