诊断肝性脑病最有意义的体征是（）。
A．肌张力增高
B．腱反射亢进
C．踝阵挛阳性
D．扑翼样震颤
E．巴彬斯基（Babinski）征阳性
参考答案：D
So absorbed _____ in his experiment that Newton boiled his watch when he wanted to boil an egg to eat. [ ]
A. he was
B. he did
C. had he
D. was he
如何对土壤水进行分类？
