四肢上运动神经元瘫痪()。
A.脊髓高颈髓
B.脊髓颈膨大
C.胸髓
D.腰膨大
E.脊髓圆锥
参考答案:A
— Will you join us in the game?
— Thank you, ____ [ ]
A. but why not?
B. but I'd rather not.
C. and l won't.
D. and I'll join.
完成周期的速度是指从一开始订货时起至货物装运实际抵达时止的这段时间。