题目

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。 Whether you're a child, teenager, youngadult or are middle-aged, respect for your parents is an important value. Yourparents are the people who raised you, devoting time, energy and money to yourdevelopment. Nomatter what your age is, there are 4 ways to show respect. Respect their belongings. One important way to show respect is toshow regard for the things important to your parents. For younger children,this may mean not touching jewelry or other valuable things. For gr3．将23g金属钠投入180g水中，待充分反应后，生成的氢气在标准状况下的体积为11.2L，反应后的溶液中钠离子与水分子的个数比为1：9．