Always remember to put such dangerous things as knives out of children’s ________.                                                                     (2011·四川，13)

A．touch

B．sight

C．reach

D．distance

高速公路、一级公路沥青路面应采用( )。

A．沥青混凝土混合料面层

B．沥青贯入式面层

C．乳化沥青碎石面层

D．沥青表面处治面层