According to the text, the experience of shyness can be measured______.
A．by brain imaging experiments with young children
B．by measuring the size of the amygdala
C．by the degree of social phobia an individual has
D．by using an MRI machine with adults

A.
A．by
B.by
C.by
D.by

【参考答案】

D
属事实信息题。第二段末尾表明，害羞的经历可以通过用磁共振成像研究成人得到测定。