【简答题】gentle _________ wide ___________ safe ________________
【单选题】学生是发展的人包含三层含义,下列选项中错误的是()。
【单选题】Compared with GC, ( ) is included in HPLC instrument.
D.
Temperature programming
【单选题】对于正确的蹲姿的描述,下列说法错误的是()
【判断题】In HPLC, thermostat oven is not required in thecolumn, and the separation could be performed at the room temperature.