女，25岁。发现心悸、盗汗、易怒1年，伴有饮食量增加、消瘦。查体：BP110/80m

复发性口疮黏膜损害的临床特征是（）

A.散在的圆形或椭圆形痛性溃疡

B.散在的多形性溃疡

C.分散簇集的多数针头大小，透明小疱疹

D.呈白色小丘疹连成的线条或网状损害

E.增生性菜花状溃疡

Theory is （）in the practice of language teaching. It reveals itself in the assumptions underlying practice, in the planning of a course of study, in the routines of the classroom, in the value judgements about language teaching, and in the decisions that the language teacher has to make day by day.

渠道系统

You aye a team star! Working with ______ is really your cup of tea．

A．both
B．either
C．other
D．the other

737-600飞机分成哪几个主要区域（）.

A.100-700七个主区域

B.100-600六个主区域

C.100-800八个主区域

D.100-900九个主区域