问题
单项选择题
冲击泵即为( )。
A．喷射泵
B．水锤泵
C．水轮泵
D．真空泵
答案
参考答案：B
搜题请搜索小程序“爱下问搜题”
冲击泵即为( )。
A．喷射泵
B．水锤泵
C．水轮泵
D．真空泵
参考答案：B
| Write the sentences. | ||
African elephants are 1.____ than Asian elephants. Their ears are 2. than Asian elephants. Asian elephants are usually 3._ than African elephants and African elephants are 4. than Asian elephants. |