X线胸片有偏心空洞，内壁凸凹不平（）
A.肺炎球菌肺炎
B.肺癌
C.葡萄球菌肺炎
D.肺结核
E.肺脓肿
参考答案：B
Which one of the following is NOT RIGHT?
A. He listened carefully in every class. As a result, he got full marks in the exam.
B. He listened so carefully in every class that he got full marks in the exam.
C. He got full marks in the exam. As a result, he listened carefully in every class.
为提高乳品蛋白质检测含量，一些不法分子在牛乳中加入的掺假物最有可能的是（）
A.甲醛
B.尿素
C.三聚氯胺
D.多环芳烃
E.苏丹红
