下列各项划线字的读音全都相同的一项是( )
A:羸弱/擂鼓 敕造/整饬 疾风劲草/肌肉痉挛
B:创伤/悲怆 款识/钥匙 铩羽而归/凶神恶煞
C:削肩/削面 勉强/强迫 螳臂当车/安步当车
D:毗邻/癖好 罢黜/拙劣 迄今为止/同仇敌忾
在研究下列问题中,能够把研究对象看作质点的是( )
It was only after he had read the papers ________ Mr. Gross realized the task before him was extremely difficult to complete.