阅读对话，根据对话内容在每个空白处填入一个适当的词．

A: Hi, I’m Alexis.

8: Nice to meet you, Alexis. I’m Joe.

A: Nice to meet you,   小题1: . Do you live here?

B: Yes, 1   小题2:. I live in an apartment across the street.

A:  小题3:  do you work?

B: I work near here, at Sisco Software Systems.

A: Oh, really?   小题4: do you do?

B: l am a computer programmer.

A: A computer programmer? That 小题5:interesting.

B: Well, actually it’s kind of boring, I do the same thing every day.

阀控型液压装置的M或H型换向阀在中位时，泵的排出油压和吸入油压之差反映了（）的大小。

A．液压泵机械摩擦损失

B．管路流动损失

C．执行机构机械摩擦损失

D．执行机构工作负荷