介导Ⅰ型变态反应的Ig主要是
A. IgM
B. IgA
C. IgG
D. IgE
E. IgD
Information obtained from libraries is sooner forgotten than .
A. it from life
B. that from life
C. what from life
D. which from life
—If you keep on breaking the rules, you will be fired. — I dont care.
A. What for
B. How come
C. So what
D. Why so
要胜利实现“十一五”规划关键在于()。
A. 坚持党的领导
B. 坚持以经济建设为中心
C. 坚持政治体制改革
D. 坚持走社会主义道路