绘图题：如图E-42所示，能否放大交流信号Ui？
参考答案：
不能放大。
The teacher wanted to know __________.
A．when was Linda born
B．if I was interested in math
C．what I will do with the computer
D．how many books have you got
将以下程序写成三目运算表达式是【 】。 if(a ＞ B) max=a； else max=b；
