Children are writing when they send instant messages， and their typing skills are improving meanwhile.

Children are writing when they send instant messages， and their typing skills are improving meanwhile.

A、正确

B、错误

正确答案：A

答案解析：当孩子们发送即时消息时，他们确实在进行文字表达，这从广义上来说属于一种写作行为。而且在不断发送即时消息的过程中，他们需要频繁地打字输入内容，随着练习次数增多，手部对键盘或屏幕输入的熟悉程度提高，手指灵活性和打字速度等打字技能也会得到锻炼和提升。所以该表述正确。