The project ______ last month but unfortunately it had to be prolonged because of the financial problem.

A．needn’t have been finished

B．shouldn’t have finished

C．could have been finished

D．must have finished

肌萎缩侧索硬化的辅助检查特点包括（）

A.运动传导速度早期基本正常，随病情进展出现复合运动电位幅度下降

B.肌电图呈典型的失神经支配改变，如纤颤电位、束颤电位和运动单位数目减少等

C.胸锁乳突肌及舌肌神经源性损害对该病诊断有显著的意义

D.40%肌萎缩侧索硬化患者头颅MRIT加权相上出现皮质高信号