题目

下列属于非特异性免疫的是（  ） A、溶菌酶能杀死许多病菌 B、流感病毒抗体能杀死流感病毒     C、SARS病毒抗体抵抗SARS病毒   D、肝炎病毒抗体能抗肝炎病毒 答案：A                                                                                                                                                                                                        Alice ________ to see his aunt if she _______free tomorrow.A．will come; will beB．come; isC．will come ;isD．comes ;will be