He has _____black hair and dark skin. [ ]
A. a
B. an
C. the
D. /
答案:D
35.______ money is concerned, we still need much support from the public so as to help the survivors of the earthquake.
A.As well as
B.As soon as
C.As far as
D.As long as
Graves病又称病毒性弥漫性甲状腺肿,此病是由患者所产生的某种Z抗体与甲状腺细胞膜上的Y激素受体结合,致使甲状腺细胞持续分泌,产生高浓度的X激素所致(如图所示)。回答以下问题:
Graves病是一种(),与系统性红斑狼疮属于同一类疾病。