大气中折射的种类有（）；（）、负折射、无折射、临界折射。
参考答案：标准大气折射、超折射
I recognized her as soon as I met her at the airport though we hadn’t seen each other for ages and she had changed _________.
A．a large amount
B．a great many
C．a great deal
D．a great deal of
风湿细胞核染色质分布特点是（）
A.均匀分布呈粗颗粒状
B.集中在中央呈细线状向核膜放射
C.集中在核膜下使核膜增厚
D.分布在核膜下呈车轮状
E.均匀分布呈细颗粒状
