异位妊娠破裂时可有哪些临床表现()
A.停经史和早孕反应
B.不规则 * * 流血
C.突然发生下腹剧烈疼痛
D.休克
E.后穹隆穿刺可抽出不凝血
参考答案:A, B, C, D, E
定影液的组成不包括
A.定影剂
B.坚膜剂
C.保护剂
D.中和剂
E.促进剂
She had lost her notebook, would you like to lend her _______? [ ]
A. your
B. yours
C. yourself
D. mine