What do medical researchers usually use to make placebo pills? Placebo pills usually are made of ______.

admin2012-09-29  52

问题 What do medical researchers usually use to make placebo pills?
Placebo pills usually are made of ______.

选项 A、inactive substance
B、active drug
C、radioactive substance
D、explosive substance

答案A

解析 见第二段第三句。
转载请注明原文地址:https://jikaoti.com/ti/WDqsFFFM
0

最新回复(0)