氨苯蝶啶长期服用需防止（）
A.低钾、低钠血症
B.高血钾
C.低钠血症及低钾、低氯血症性碱中毒
D.骨质疏松
E.胃肠道反应
参考答案：B
T细胞抗原受体复合体（T—cell antigen receptor complex，TCRC）
W: Do you let people know when you’re taking pictures of them M: I try not to. You know any picture of a person who poses for the camera would look dull and unnatural. Q: What are the speakers talking about()
A. Taking photographs.
B. Enhancing images.
C. Mending cameras.
D. Painting pictures.
