题目内容

__________ he retires, Prof. Baker will have taught in the university for almost forty years.

A. By this time
B. At the time
C. At the same time
D. By the time

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The commercial centre __________ will be the most magnificent one in the city.

A. built
B. to be built
C. be building
D. having been built

下列哪项不由延髓脑桥沟发出

A. 三叉神经
B. 面神经
C. 展神经
D. 前庭蜗神经

下列哪项结构属于延髓

A. 橄榄
B. 基底部
C. 小脑中脚
D. 灰结节

属于下行纤维系的是

A. 内侧丘系
B. 脊髓丘系
C. 锥体系
D. 三叉丘系