为了测定多痛苦的耐受力，给被试一个适当的电击

问答题The history of transportation is very long and full of changes and inventions. It starts（1）walking, which is not any invention; it just takes energy. People used to walk to get to other places. If you wanted to get somewhere quickly, the（2）way to do that was to run. Actually, the first invention for transportation（3）was the shoe. Centuries ago there were no shoes, and people walked barefoot.

问答题量化研究的基本过程有