Russia’s cutting off the gas supply raised a major concern to the European Union, ______ a number of member states are increasingly dependent on one single supplier.

A．whose

B．that

C．where

D．which

患者女性，39岁，因右侧耳鸣，听力下降半年余入院，MR检查发现右侧桥小脑角区可见一类椭圆形异常信号，与右侧内听道相连，病灶在T₁WI呈等低信号，T₂WI呈稍高信号，内部可小类圆形长T₁长T₂信号，边界清楚，增强扫描病灶明显不均匀强化。该患者最可能的诊断是（）

A.听神经鞘瘤

B.三叉神经鞘瘤

C.脑膜瘤

D.表皮样囊肿

E.听神经纤维瘤