_____ to sunlight for too much time will do harm to one’s skin.

A．Exposed

B．Having exposed

C．Being exposed

D．After being exposed

血府逐瘀汤的功用是（）。

A.活血祛瘀，行气止痛

B.活血祛瘀，养血清热

C.活血祛瘀，疏肝通络

D.活血祛瘀，散结止痛

E.活血祛瘀，温经止痛