A.a>1
B.a≤3
C.a<1或a>3
D.1<a≤3
E.无解
[单选题]A.a>1B.a≤3C.a<1或a>3D.1<a≤3E.无解
[单选题]A.1:1B.2:3C.4:5D.6:5
[单选题]A.甲亢B.单纯性甲状腺肿C.甲状腺炎D.桥本氏甲状腺肿E.结节性甲状腺肿
[判断题]A.对B.错
[问答题]