【单选题】It is hard to ensure that people doing ______ jobs receive equivalent rates of pay.
【单选题】传感器在设计和选型时,要根据实际情况,留出指标的
【单选题】Jack is a factory worker. It's hard ____. [ ]
【判断题】蓄电池极板硫化的正确处理方法是避免过度放电,尽快充电。
【单选题】Jobs are hard to get and, _______, more young people are continuing their education.
【简答题】传感器在设计和选型时,要根据实际情况,留出指标的()。