和谐D3型机车升弓时，首先需确定总风缸压力在（）kPa以上。
参考答案：480
以下不属于P2P应用的是______。
A．文件共享
B．多媒体传输
C．即时通讯
D．蓝牙技术
She has _____ a great deal of money, hoping that she can travel around the world after she retires.
A．put on
B．put up
C．put off
D．put away
