题目

When you are away from home for a long time, you start to miss your family, you’re feeling homesick (想家的). You can help yourself feel less homesick. Here’s how:  ●Bring something familiar with you. If you’re going away from home, take your favorite pajamas (睡衣) with you. You can also bring some pictures of the people who you may miss. You can look at them any time you want.  ● Keep yourself busy. The busier you are, the less time you’ll have to feel homesick. Spend your free time listening to music or reading books. ● Stay in touch. You can make a plan for whe先后抛掷2枚均匀硬币（1）出现“一枚正面，一枚反面”的概率是多少？（2）有人说：一共出现“两枚正面”“两枚反面”“一枚正面，一枚反面”三种结果，因此出现“一枚正面，一枚反面”的概率是，这种说法对不对？