胚胎时期起重要防御作用的Ig是（）
A.IgG
B.IgA
C.IgM
D.IgD
E.IgE
参考答案：A
对不服司法机关生效裁判、决定的申诉，逐步实行由（）。对聘不起律师的申诉人，纳入法律援助范围。
The quality of the goods we have received is not as good as the ( ) you presented.
A．sample B．exampleC．for example D．gift
