答:
1. There is a group of students who adore science.
2. These students have average grades.
3. Sodium is a highly reactive chemical substance.
4. These papers ignite when in contact with water.
5. These bottles explode when in contact with fire.
答:
1. There is a group of students who adore science.
2. These students have average grades.
3. Sodium is a highly reactive chemical substance.
4. These papers ignite when in contact with water.
5. These bottles explode when in contact with fire.