题目

When people have a cold, a fever, or the flu, they usually go to the doctor for help, or they get some medicine from the drugstore. But many people also use home first-aid ways for common illness. The following are some simple examples.Colds Lots of people eat hot chicken soup when they have a cold. They find it can make the head and the nose clear. Some people drink hot lemonade with red pepper and sugar.Burns First find out how bad it is, and then put the burned area under cold running water. It’s important not to put ice on the burns.Cuts Cover the cut with a clean cloth first. Then press如题图所示，是某同学为“探究通电导线在磁场中受力情况”而设计的一个实验装置图．（1）为了探究通电导线受力方向与电流方向的关系，他的做法是______．（2）为了探究通电导线受力方向与磁场方向的关系，他的做法是______．（3）实验表明：通电导线在磁场中的受力方向跟______的方向、______的方向都有关系．