当冷油器泄露应切为旁路运行,关闭(),隔离故障点。
A.润滑点回油阀
B.油泵出口阀
C.冷油器出、入口阀
D.泄压阀
参考答案:C
—There _____ a lot of meat on the plate. Would you like some?
—Just a little, please. [ ]
A. is
B. are
C. am
D. be
浏览器和Web站点在利用SSL协议进行安全数据传输过程中,最终的会话密钥是由______产生的。