铸造网状支架包埋在基托中的最佳位置是

A．基托最薄处

B．基托最厚处

C．基托中部

D．基托最窄处

E．基托应力集中处

If we can ____ our present difficulties, then everything should be all right.

A．come across

B．get over

C．come over

D．get off