根据Ekman的理论，基本情绪分为：快乐、悲伤、愤怒、恐惧、惊讶这五种。
参考答案：错
As it is known to all,________ attention you pay to your spelling,________ mistakes you might make.
A．the less; the less
B．the less; the fewer
C．the less; the more
D．the more; the more
加压过滤机的液压杆限位开关无信号或连续信号是什么原因造成的？如何处理？
