主要聚居在云南省西双版纳、德宏两个自治州的是？
参考答案：傣族主要聚居在云南西双版纳和德宏
So far, several cases of a disease, ___________as H1N1, are reported to have been found in the country.
A．knowing
B．to be known
C．having known
D．known
形成舌骨大角和舌骨体下部的软骨来自于（）
A.第一鳃弓
B.第一鳃沟
C.第二鳃弓
D.第二鳃沟
E.第三鳃弓
