A-A+ Participants in the trials were happy when the 2022-08-05 16:06:31 问答库 阅读 169 次 问题详情 Participants in the trials were happy when they were stopped early.A．RightB．WrongC．Not mentioned 参考答案 正确答案：C解析：短文并没有提及当这些实验研究被提前停止时实验对象是否感到高兴。
