由于对氯离子通透性降低而致的肌病为（）
A.高钾型周期性瘫痪
B.正常血钾型周期性瘫痪
C.低钾型周期性瘫痪
D.先天性肌强直
E.多发性肌炎
参考答案：D
—Hello, Mrs James. Is Sally at home? I want to play badminton with her.
—________. She's gone for a walk across the fields.
A．I'm sorry
B．Hold on
C．No problem
D．Forget it
甲醇中注入工艺气的目的是与循环甲醇中的铁、镍生成硫化物。
