—What’s wrong with you, Eric? You look tired.

—I ______ to prepare for the final exam last night.

A．picked up

B．woke up

C．stayed up

D．put up

肉眼血尿为1000mL尿中血的毫升数为（）。

A.0mL

B.1mL

C.3mL

D.4mL

E.5mL