胃癌病人直肠指检，直肠前凹发现质硬结节，怀疑为转移，这种转移属于
A.全身扩散
B.淋巴道转移
C.直接蔓延
D.血道转移
E.种植性转移
参考答案：E
—_____ a year does your school have sports meetings?
—Twice a year. [ ]
A. How often
B. How soon
C. How long
D. How many times
寒主收引是指
A．寒性重浊粘滞
B．寒邪损伤阳气
C．寒邪阻滞气机
D．使气机收敛,经络筋脉挛急
E．寒为阴邪,易伤下部
