综合研究法又称个案法，就是把观察、谈话、作品分析等方法结合起来运用。（）
参考答案：对
经国家商检部门许可的检验机构，可以接受对外贸易关系人或者外国检验机构的委托，办理进出口商品检验鉴定业务。
---Jack didn’t pass the examination last week.
---_______? He had been working so hard at his lessons.
A．What for
B．Pardon
C．Did he
D．How come
