两个共点力F₁与F₂的合力大小为10N，则F₁与F₂的大小可能是

A．F₁＝4N，F₂＝5N

B．F₁＝12N，F₂＝18N

C．＝1N，F₂＝12N

D．F₁＝10N，F₂＝10N

Nowadays children should learn to ______ other children.

A．be related to

B．relate to

C．do with

D．refer to