The value of β for a transistor is generally( ).
A: 1
B: less than 1
C: between 20 and 150
D: above 500
A: 1
B: less than 1
C: between 20 and 150
D: above 500
举一反三
- Normally, the distance between the approach and the main signal is no less than （ ）meters. A: 500 B: 600 C: 700 D: 800
- Money market securities usually have a maturity of: () A: more than 1 year B: less than 1 year C: 1<br/>to 3 years D: less than 91 days
- 下列程序的运行结果是（ ）。t = 0 while t < 5: print(t, " is less than 5") t = t + 1else: print(t, " is not less than 5") A: 0 is less than 51 is less than 52 is less than 53 is less than 54 is less than 55 is not less than 5 B: 1 is less than 52 is less than 53 is less than 54 is less than 55 is less than 55 is not less than 5 C: 0 is less than 51 is less than 52 is less than 53 is less than 54 is less than 5 D: 1 is less than 52 is less than 53 is less than 54 is less than 55 is less than 5
- In the event of a 1% fall in the market rate, the return on the stock is expected ________. (降低不到1%). A: decrease by less than 1 percent B: decrease by at least 1 percent C: to decrease by less than 1 percent D: to decrease by at least 1 percent
- Write an essay of no less than 150 words on the following topic. 并将作文拍照上传。 Generation gap between parents and children.