HL8-4S-11压缩机辅助油泵操作模式有（）、（）、（）三种。
参考答案：手动；自动；备用模式
________ you’ve got two film tickets, you may as well invite Mary to go with you tonight.
A Now that B After all C Although D As soon as
CY-101型磁压力式氧分析仪分析部分缓冲器的作用是什么？
