镫骨肌阵挛引起的耳鸣是（）。
A.血管性耳鸣
B.肌源性耳鸣
C.气流性耳鸣
D.神经性耳鸣
E.传导性耳鸣
参考答案：B
—What have you been busy with these days?
—I ______ that the speech contest has been brought forward, so I ______ for it.
A．was informed; have been preparing
B．have informed; am preparing
C．informed; have prepared
D．was informed; prepared
《朗香教堂》是建于______的现代建筑之一。
A．英国
B．荷兰
C．德国
D．法国
