"人命至重，有贵千斤，一方济之，德逾于此。"这段话出自（）
A.《大医精诚》
B.《伤寒杂病论》
C.《内经》
D.《波克拉底誓言》
参考答案：A
血液含量中最少的IgG亚类是（）.
A.IgG1
B.IgG2
C.IgG3
D.IgG4
E.总IgG
. The reason why I have to go is _____ if I don’t.
A．that she will be disappointed
B．because she will be disappointed
C．because of her being disappointed
D．that she will be disappointing
