为了测试一下现在儿童的自我保护意识和能力，某报记者亲自设局“拐骗”儿童。结果发现：85%的儿童轻信对方，愿意跟对方走；10%持怀疑态度，不跟对方走。这说明（    ）

①未成年人生活经验不足，辨别是非的能力不强            ②未成年人不明是非善恶

③未成年人应增强自我保护意识，提高自我保护能力    ④未成年人需要法律给予特殊保护

根据短文内容, 选择正确答案。
(A)
    "Well, we're in our new house. Let's get a new pet to get along with it."Mrs. Brown said to her husband.
    "That sounds like a pretty good idea," he answered. "Do you want to see the ads(广告) in the newspaper?"
    "Let's go to the animal shelter. Many pets there need homes. Since tomorrow is Saturday, we can both go." she said.
    Next morning the Browns met Mr. Snow at the animal shelter. "We want to be sure that the pets here go to good homes." Mr. Snow said, "So I need to ask you some questions."
    After they talked for a while, the Browns decided to get a small dog. It wouldn't need a big house or a big yard. A small dog would bark and warn them if someone tried to break into their house. After Mr. Snow gave the Browns a book on pet care, they chose one and wanted to take her home right away. But the animal doctor hadn't checked her yet. So Mr. Snow told them to return on Sunday.
    On Sunday afternoon the Browns went to the animal shelter. The animal doctor said, "Shadow has had all of her shots(预防针). She will be healthy. "The Browns thanked the doctor and took Shadow home.

核能是一种高效的能源：

①在核电站中，为了防止放射性物质泄漏，核反应堆有三道防护屏障：燃料包壳，压力壳和安全壳（见图甲）．结合图乙可知，安全壳应当选用的材料是____．

②图丙是用来监测工作人员受到辐射情况的胸章，通过照相底片被射线感光的区域，可以判断工作人员受到何种辐射．当胸章上1mm铝片和3mm铝片下的照相底片被感光，而铅片下的照相底片未被感光时，分析工作人员受到了____射线的辐射；当所有照相底片被感光时，工作人员受到了____射线的辐射．

清末有一个状元，面对民族危亡，毅然弃官还乡，走“实业救国”之路；***在谈到中国民族工业时，曾赞扬说，轻工业不能忘记他。“他”指的是（    ）

父亲节，母亲节分别是哪一天，父亲节____；母亲节____。