根据句意和汉语提示，填写单词。

1. Liu Huan is a famous ________(音乐家) in China.

2. The song ________(使记起) me of my childhood.

3. My ________(心) was beating so fast at that moment.

4. Mom ________ (不喜欢) loud and fast music.

5. I ________(更喜欢) apples to pears.

液压舵机双泵并联工作比单泵工作（）。

A．转舵扭矩约提高一倍

B．转舵速度约提高一倍

C．工作油压约提高一倍

D．A和B