特应性皮炎发病中，吸入性变应原包括（）
A.动物毛
B.花粉
C.真菌
D.屋尘
E.以上都是
参考答案：E
—How long ago _________ you _________ the English Club?
—I _________ it since two years ago.
A．did, join; joined
B．have, been in; joined
C．have, joined; have joined
D．did, join; have been in
孙中山、华盛顿和甘地都被本国人民尊为“国父”，主要是因为
A．领导本国人民实现了历史巨变
B．实现与友党的合作
C．领导人民大力发展经济
D．与殖民统治者进行坚决斗争
