Some people think clowns are only funny for children. _____, they can help people forget their problems,

at least for a short moment. [ ]

A. Actually

B. Especially

C. Probably

D. Surely

学前儿童的意志过程往往表现为（）。

A.没有明确目的的意志行动

B.直接外露的意志行动

C.不能克服困难的意志行动

D.不能自觉调节与控制的意志行动