苍术

A．体轻，质松，易折断，断面粉质，显疏松层纹
B．质松而韧，横断面可见外层为海绵状物，内层为许多小室，室内有卵
C．质硬而脆，断面平坦，外层白色，中间有亮棕色或亮黑色的丝线环4个
D．体轻，中空，易碎，表面黄棕色半透明
E．体轻，骨质坚硬，“马头，蛇尾，瓦楞身”

1) ______ Language (1933)
2) ______ Syntactic Structures (1957)
3) ______ How to Teach a Foreign Language (1904)
4) ______ The Practical Study of Languages (1899)
5) ______ Outline of English Phonetics (1918)
a) Jaspersen
b) Daniel Jones
c) Leonard Bloomfield
d) Henry Sweet
e) Noam Chomsky