根据句意及首字母提示，补全单词。

1. January comes after D_______.

2. Difficult m_______ hard. They have the same meaning.

3. —How do you c_______ your birthday every year?

    —I often have a birthday party.

4.Kangkang often helps his mother do some c_______ on Sundays.

5. —Did you recite a Chinese p_______ at the party?

    —Yes, I recited one of Li Bai's.

大型养路机械柴油机机油压力测量装置由机油压力表和机油压力传感器组成，机油压力表指示范围一般是0-5bar，工作电压一般为24v。(1bar=0.1Mpa)