搜题请搜索小程序“爱下问搜题”
问题 单项选择题

192×192×192-171×171×171=( )。

A．1905258
B．2066755
C．2077677
D．3217509

答案

参考答案：C

解析：两乘末位数相减为7，直接排除A、B、D。

完形填空

B. Cultural corner

Dragon can be friendly or 1______, they can bring good luck or 2_______ death and destruction. For a creature that doesn’t actually exit, that’s 3_____.

In Chinese culture, dragons are 4______and wise, although they can be 5_________. The dragon was closely 6_________ to the royal family. According to popular 7_______, if you were born in the year of the 8_______, you are intelligent, brave and a natural leader.

But in the west, dragons had a different 9__________.

Why10________the dragon have a different character in different parts of the world? Some experts believe it is 11______to the animals the myths grow out of. In the west, the idea of the dragon probably came from the 12______. But in China, the idea of the dragon came from the 13_________, a good sign for 14_________. So the Chinese dragon was a 15_________ of good fortune.
查看答案
单项选择题 共用题干题

在模拟声音的数字化过程中，语音采样频率一般在__（1）__左右，音乐信号采样频率需要在__（2）__以上。

空白（2）处应选择（）

A.4kHz

B.8kHz

C.20kHz

D.40kHz
查看答案