正常口底部的淋巴回流是（）。
A.颈深上淋巴结
B.颈内静脉周围淋巴结
C.咽后淋巴结
D.下颌角淋巴结
E.颏下淋巴结
参考答案：E
—Look! This is__________ .
—Very beautiful. When did she take it?
A．mymother’spicture
B．mymotherinthepicture
C．apictureofmymother
D．apictureofmymother’s
Teachers should not be too strict teenagers. [ ]
A. with
B. of
C. on
D. in
