下列方法中，可以得到较大的近场区是（）

A.使用高频探头

B.在探头上加一个凸透镜

C.减少探头直径

D.增大阻尼

E.使扫描速度增加

The kids were hard to ______ since they were so excited in the evening party.

A．settle down

B．turn down

C．get down

D．break down