【简答题】黄龙汤的功用是____;大黄牡丹汤的功用是____。
【简答题】如图1.3.31所示电路,求I1和I2。
【单选题】Sam wants to invest $5,000 for 5 years. Which one of the following rates will provide him with the largest future value?
A.
5 percent simple interest
B.
5 percent interest, compounded annually
C.
6 percent interest, compounded annually
D.
7 percent interest, compounded annually
【简答题】电路如题 31 图所示, U BE = 0.7V , ß = 100 , R P 调为 71kΩ. ( 1 )试求电路的静态工作点 I BQ 、 I CQ 和 U CEQ 。 ( 2 )试求该电路接上负载时的电压放大倍数 A u = U o / U i ( r be 取 1.5kΩ )。 ( 3 )试求该电路的输出电阻 r o 。 ( 4 )当 U S = 122mV 时,测得 U i = 20m...
【单选题】如图 1-31 所示电路, 3A 电流源发出的功率为( )
【判断题】在恋爱初期,男性愿意割舍一切的自由。()
【单选题】男性在恋爱初期( )。 A更为理性 B比较缺少浪漫 C较少理智地考虑未来的事情 D能够规避冲动和盲目