单选题There is clear evidence&n

问题补充：

单选题Thereisclearevidence______themostdifficultfeelingofalltointerpretisbodilypain.A.whatB.ifC.howD.that

答案：

D解析此处的the most difficult feeling of all to interpret is bodily pain 是同位语从句,用来说明evidence是什么,故用that引导同位语从句。意思为有明显证据表明最难以描述的感受来自于身体的伤痛.