慢性排斥反应的特点是()
A.突发寒战高热
B.术后1~2周发生
C.术后24小时内发生
D.移植器官功能逐渐减退
E.移植器官肿大,局部疼痛
参考答案:D
—Hi, Johnson, any idea where Susan is?
—It's class time, so she in the classroom now.
A.can be
B.must have been
C.might have been
D.should be
JD-1A型微机联锁系统,与单线半自动闭塞结合电路中采集KTJ的()。
A、前接点
B、后接点
C、中接点
D、前后接点