主要经粪-口途径传播的肝炎病毒是（）
A.HAV和HBV
B.HCV和HAV
C.HDV和HEV
D.HAV和HEV
E.HCV和HEV
参考答案：D
正常月经期（）
A. * * 血性溢液
B.棕褐色溢液
C.淡黄色或棕褐色溢液
D.乳白色溢液
E.浆液性无色溢液下列情况下 * * 常见溢液分别为上述哪项
A desk is made _____ wood, and paper is made _____ wood, too. [ ]
A. from, from
B. of, of
C. of, from
D. from, of
