以下属于必须局内投交的邮件是（）。

[单选题]     When I was young, I spent my summer vacations on my grandparents' farm. The summer that I graduated from college, I  56   my grandparents once again. When I arrived,I discovered that there was a family  57  in progress.     Grandpa's dog and hunting partner, Rusty, had taken on a very bad   58  in his old age. He had begun  59   into the chicken coop (鸡笼) and eating eggs. In the eyes of the local farmers,  60 dogs started stealing eggs, there was no  61  to cure them. They knew there was only one thing to be done  62   such a dog-you had to shoot it and the sooner the  63  .     Rusty and Grandpa were old friends. Grandpa certainly didn't  64   to shoot Rusty,but he knew it needed to be done. The 66egg money" was Grandma's private income, so you can imagine  65  she felt about the problem. 66  the inexperienced confidence of youth, I told Grandpa that I thought I could"cure"the egg-stealing dog. I wanted to at least have a  67  to save Rusty's life, and save Grandpa from the sadness of  68  Rusty.      The next morning, I broke open six fiesh eggs and put them in Rusty's bowl   69 at the door to the chicken coop. Rusty came 70  and noticed the eggs. He quickly  71   the eggs and happily walked off for his nap (打盹). The following morning I did the  72  thing.I put the eggs a few feet away from the chicken coop, toward the back door of the farmhouse  73   Grandma usually fed Rusty. The next day I again moved the bowl closer to the house, and added some dog food to the eggs. Every day I moved the bowl closer to the back door, mixing more dog food and   74   eggs. By the time the bowl reached the door, it was all dog food and no eggs. Rusty had again become   75 to looking for his food at the back door of the house, and never again went into the chicken coop.56.A.watched     B.noticed    C.invited    D.visited

[单选题]社会保险对象是（）

[单选题]下列元器中（）需要在装插孔用铜铆动加固。

[多选题]工程测量平面控制网精度等级的划分，下列说法正确的是（）

[单选题]非O1群霍乱弧菌常引起的疾病是（　　）。

[单选题]根据美国FDA的妊娠期药物安全性索引，下列药物属于B类的是（）

[单选题]下作用钩提杆弯曲部位与人力制动轴托上、下部和水平距离均须大于20mm，钩提杆手把下端面至钢轨上平面的距离须大于（）。

[问答题]维修技工甲说：导线的直径越小，其电阻值越大。维修技工乙说：导线的美国线规标号越小， 其电阻值越小。他们哪位是正确的？

[单选题]BE012机车运用中，单独制动蒯的调整阈故障会使机车（）压力达到总风压力

[多选题]产后3～4天感乳房胀与哪些因素有关？（）

[多选题]以下哪些邮件属于局内投交邮件（）。

[单选题]以下属于局内投交的邮件是（）

[单选题]局内投交和存局候领邮件保管期为（）。

[单选题]以下属于必须局内投交的邮件是（）。

[多选题]局内投交邮件的范围有（）。

[多选题]以下不可作为局内投交邮件处理的有（）。

[多选题]下列哪些邮件应局内投交（）。

[填空题]对于再投邮件、待查邮件、局内投交邮件、存局邮件，分别在“特快专递邮件再投批条”上详细批注原因、再投时间，并将“再投批条”粘贴在详情单（），签章后交总台人员。

[单选题]局内投交邮件需填发领取邮件通知单交（）。

[单选题]邮件投递时必须采用局内投交的邮件是（）。