男性，15岁，摔伤后左膝关节肿胀，疼痛。体检示左膝关节局部肿胀，压痛明显，膝关节及其周围有大片瘀斑，其兄有血友病A病史。

除下列哪项实验室检查外，均有助于该患者的诊断（）。

A.CT

B.RT

C.PT

D.ACT

E.APTT

Many youngsters have heard their parents say "You'll never amount to anything if you keep daydreaming that way!"

A．be equal to

B．accomplish

C．add up to

D．pursue