增加碘化钾的用量，可加快重铬酸钾氧化碘的速度，它属于（）。
A.反应物浓度的影响
B.温度的影响
C.催化剂的影响
D.诱导反应的影响
参考答案：A
在秋季和早春季节，羊只突然死亡，死羊膘情较好，剖检见真胃呈明显的出血性炎性损害，应首先考虑（）
A.羊肠毒血症
B.羊快疫
C.羊猝狙
D.羊黑疫
E.恶性水肿
Not only _______ interested in football but _______ beginning to show an interest in it. [ ]
A. the teacher himself is, all his students are
B. the teacher himself is, are all his students
C. is the teacher himself, are all his students
D. is the teacher himself, all his students are
