下咽癌颈淋巴结转移中50%～60%转移至（）。 A.锁骨上淋巴结 B.

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问题单项选择题 A1/A2型题

下咽癌颈淋巴结转移中50%～60%转移至（）。

A.锁骨上淋巴结

B.锁骨下淋巴结

C.同侧腋窝淋巴结

D.中下颈淋巴结

E.中上颈淋巴结

答案

参考答案：D

填空题

用方框中所给单词的适当形式填空，，每词仅用一次。

小题1:Teachers often tell their students about the _________ of learning how to learn.

小题2:Do you know that Bill Gates gave away________ of dollars in 2010?

小题3:You’d better go to bed early, or you will feel_____ in class.

小题4:Think it over before you make a ________.

小题5:We’re in the __________ grade now. And we should learn hard.

问答题

培养基