最近，俄罗斯科学家宣布他们通过核反应合成了核电荷数为114、相对原子质量为289的超重元素原子。则该原子核内质子数、中子数、核外电子数分别是（  ）

已知三棱柱$ABC-A_1{B}_1{C}_1$的侧棱与底面边长都相等，$A_1$在底面ABC上的射影为BC的中点D，则异面直线AD与$C{C}_1$所成的角的余弦值为（  ）

以下有关体液免疫过程的排序，正确的是（  ）

①吞噬细胞摄取处理②吞噬细胞吞噬消化细胞集团或沉淀③T细胞接受病原体特有的抗原④B细胞增殖分化⑤T细胞产生淋巴因子⑥浆细胞产生的抗体与病原体结合．

假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有10处语言错误，每句中最多有两处。每处错误仅涉及一个单词的增加、删除或修改。
增加：在缺词处加一个漏字符号（∧）并在其下面写出该加的词。
删除：把多余的词用斜线（\）划掉。
修改：在错的词下划一横线，并在该词下面写出修改后的词。
注意：1）每处错误及其修改均仅限一词；
2）只允许修改10处，多者（从第11处起）不计分。
    Last summer I go to America and studied at a language school. I had many wonderful experience, but I also had a sad one. One day, the school held party , where I invited to talk about Chongqing. After that they asked me a lot of things about China. But I couldn't explain them with English clearly. I felt sadly. I learned a lesson from this experience. I have already studied English for eight years, I can't use it very good. I must work hard to improve my spoken English so that I will not be able to communicate freely with foreigners. I hope I can be a bridge between China and others countries in the future.

小阳根据自己的猜想，进行了如下探究：

  取不同质量的海波让它们刚好完全熔化，迅速放入质量相等、初温相同的两烧杯冷水中。如图所示，待海波刚凝固完毕后，迅速用温度计测出各自烧杯中水的温度，通过比较________来确定质量不同的海波凝固过程放热的多少。