下列各项中，划线词语读音全部正确的一项是（     ）

完形填空题

     My family members like to use computers. We live in China. My aunt1in Australia. My mother and my aunt often2e-mails to each other. Sometimes3chat(聊天) online.

     My father is a4in a middle school. He often searches for5for his lessons6the Internet.

     My brother and I like to7computer games. I like to play Counter Strike, but he likes to play Seer(赛尔号). My8don't like us to play them too long. They say that playing computer games too long is bad for our9and study. We both like music, too. So sometimes we10music on the computer.

在做“比较不同水果中的维生素C的含量”探究实验时，榨取水果可以获得果汁，“果汁”主要来自水果细胞中有（   ）

甲：在鼓面上放一些碎纸屑，敲鼓时可观察到纸屑在不停地跳动

乙：放在真空罩里的手机，当有来电时，只见指示灯闪烁，听不见铃声

丙：吹自制的哨子，上下拉动活塞可使声音变得悦耳或低沉

丁：宇航员在飞船舱外工作时，他们之间的对话必须借助电子通讯设备才能进行．