．—Call me at 5: 30 tomorrow morning．

—Why that early? I _____ then．

A．will sleep

B．was sleeping

C．will be sleeping

D．have been sleeping

目前采用间接免疫荧光法检测患者血清中的dsDNA的最佳基质是

A．马疫锥虫

B．血吸虫

C．利什曼原虫

D．丝虫

E．绦虫