原发性输卵管癌常见的临床表现为 * * 排液、腹痛和盆腔肿块的"三联征"。
参考答案：对
Grace and her classmates had a good time _______ the school trip. [ ]
A. on
B. for
C. with
D. of
伤寒病程中任何时期阳性率最高的是（）
A.血培养
B.骨髓培养
C.便、尿培养
D.血、便、尿培养
E.玫瑰疹培养
