China’s first spaceman, Yang Liwei, with Shenzhou Ⅴ ______ successfully to earth on Thursday morning after more than 21 hours’ travel along the earth’s orbit.

A. returned back
B. arrived
C. reached
D. returned

下述肺隐球菌病特点，错误的是()

A．单发或多发结节

B．空洞、实变并存

C．罕有钙化

D．肺门淋巴结肿大

E．半月征