鸡卵进行胚胎发育的部位是____。卵白能为胚胎发育提供____和水分。未受精的鸡卵中包含有一个细胞，其中卵黄膜相当于这个细胞的____。

    Showing your feeling is important. It is a mistake not to talk to anyone1you're feeling sad, worried or nervous. If you keep bad feelings inside, it can even make you2.

    But if you  3 with someone，like your mom or dad or your best friend，you'll usually begin to feel 4 than before. Now you're not all alone with your problems or worries. 5，it doesn't mean your problems and worries will disappear magically(神奇地）.But at 6，someone else understands what's 7 with you and can help 8 find ways to solve your problems.

    Your mom and dad want to know if you have any 9.They love you and they want to know what's happening in your life. But if you don't want to talk with them，what should you do? Find a trustworthy(可信的)friend or teacher at school or a relative. Maybe that person can help you deal with your problems. Then you'll feel as 10as before.

某同学想用实验证明FeCl₃溶液显黄色不是Cl^-造成的，下列实验无意义的是   （）