假设某公司只有一台打印设备，但是为了工作的需要，高级主管的紧急文档需要能够优先打印，

根据情境及首字母提示填入适当的单词，使短文句意完整、通顺。

Pen pal wanted

His name is Wang Lei. He is a（1）C_____ boy. He wants a pen pal in（2）F_______ . He thinks it’s a very（3）i______  country and he wants to learn some French. He（4）l_____  in Beijing, China with his parents now. He is 14 (5) y______  old and his (6) b______  is in November. He can speak Chinese and a little English. What are his (7) l______ ? He likes watching sports games on TV and (8) p_____ computer games with his friends. His favorite subject is computer science. It’s (9) f______ . He doesn’t like math, because it’s too difficult.

Please write to (10) h____ and be his pen pal.

发生中断时被打断程序暂停点称为　　【6】　　。

铁路车辆的货车，其中棚车、敝车、平车、罐车等修程期限规定厂修时间为（）。

A、3年

B、4年

C、5年

D、6年

n-6系列的必需脂肪酸是（）

A.花生四烯酸

B.亚油酸

C.二十二碳五烯酸

D.γ亚麻酸

E.都不是

稳定性是指在规定条件下，衡器示值及某些性能随时间的变化保持不变的能力。