不回流至胸导管的淋巴干是（）。
A.左腰干
B.肠干
C.右颈干
D.左颈干
E.右腰干
参考答案：C
解析：右颈干回流到右淋巴导管。
______ interested us most was ______ he saw last night.
A．It; what
B．What; what
C．What; how
D．It; how
