幼年时腺垂体功能亢进可引起
A．侏儒症B．呆小症C．肢端肥大症D．巨人症E．黏液性水肿
参考答案：D
Li Ming __________ a pair of mittens.[ ]
A. have
B. has
C. had
D. having
甲烷、乙烷和丙烷的混合物()
