下列物质中,不属于合金的是[ ]
A.紫铜
B.青铜
C.硬铝
D.钢
答案:A
-- Are you glad to hear from her?
--Of course. _______I dreamed about her several nights.
A.What if
B.That is to say
C.In other words
D.Believe it or not
30岁,已婚。未生育,以往月经规则,现停经42天,少量 * * 出血3天,伴下腹痛。妇科检查: * * 少量血迹,宫颈轻度糜烂,宫口闭,轻度举痛,子宫中位,正常大小,左附件见一肿块,直径3cm,轻压痛,右附件阴性。
拟诊断为()
A.急性阑尾炎
B.先兆流产
C.宫颈息肉
D.卵巢囊肿
E.异位妊娠