氨茶碱的适应证是()
A.原发性高血压、心绞痛
B.糖尿病
C.房性心动过速
D.哮喘
E.过敏性休克
参考答案：D
粪便外观为白陶土色，主要见于（）
A.消化道出血
B.阻塞性黄疸
C.胃癌
D.服用铁剂、炭粉
E.肠道寄生虫感染
Why is Thomas Jefferson mentioned in this passage
A．As an example of interracial intimacy.
B．Because he was a slave owner and was ply against interracial marriages.
C．Because he was one of the early advocates of interracial marriages.
D．Because he married a black woman.
