题目内容

参与大脑动脉环组成的动脉有

A. 前交通动脉
B. 大脑前动脉
C. 大脑中动脉
D. 大脑后动脉
E. 后交通动脉

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海绵窦内通过的结构有

A. 动眼神经
B. 视神经
C. 展神经
D. 颈内动脉
E. 上颌神经

— Why did the dog bark?— ________ its owner he forgot to feed him.

A. Telling
B. To tell
C. Told
D. Tell

It is not so easy to pick ________ a good toy for her son.

A. out
B. up
C. from
D. off

He ________ about four cups of coffee, but he was still tired.

A. drink
B. drunk
C. drinks
D. drank

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