麻疹的高发季节是（）
A.春夏
B.夏秋
C.秋冬
D.冬春
E.春秋
参考答案：D
免疫原（imunogen）
The news that the Prime Minister was badly ill________ on the Internet,which shocked the world. [ ]
A. was given out
B. gave away
C. was given in
D. was given up
