小脑下脚内不包含的神经纤维束为（）
A.顶核与前庭核的往返纤维
B.脊髓小脑后束
C.橄榄小脑束和楔小脑束
D.脊髓小脑前束
参考答案：D
We went right round to the west coast by ______ sea instead of driving across ______ continent.
A．the; the
B．不填；the
C．the; 不填
D．不填；不填
吐温80能使难溶药物的溶解度增加，吐温80的作用是
A．增溶B．助溶C．润湿D．乳化E．潜溶
