最近收到不少同学来问：Merck 这类传统医药巨头的 Tech 岗 OA 都考什么？难不难？其实，虽然是 healthcare 公司，但 Merck 的技术岗走的是标准 tech company 流程，OA 部分既看算法基础，也不乏对代码细节的考察。今天就来整理一份 Merck OA 全攻略，帮大家快速摸清套路、提前准备！
Merck OA 流程概览
Merck 虽然是传统医药公司，但 Merck 的技术招聘流程非常标准化、科技感十足，OA 多通过 Codility 或 HackerRank 等第三方平台进行，考试体验与大厂基本一致。
进入考试后会自动开始计时，整体时长通常为 60 到 90 分钟，一共包含 2 到 3 道编程题，题型设计偏向“实用 +严谨”，既考算法基本功，也强调代码健壮性、边界处理和可读性。
从学员反馈来看，题目难度大多在 LeetCode Medium~Hard 之间，但更偏“工程思维”：比如如何根据输入数据模拟系统行为、实现某个业务逻辑处理模块等。
平台操作方面，Codility 和 HackerRank 都会自动检测语法错误、运行样例测试，并在提交后进行隐藏测试样例验证，重点考察代码在极端数据和边界场景下是否仍然稳定运行。
此外，有些题目要求你自己设计输入输出格式，这类题目建议尽早与面试平台界面熟悉，避免在题目理解和格式校验上浪费时间。务必预留 10~15 分钟做测试样例验证 + debug 提交，不要把时间卡太死在主逻辑实现上。
Merck OA 真题分享
Question 1
You are the Chief Data Scientist of an e-commerce website. In order to predict how much money a customer will spend on your company’s platform, you build a multiple linear regression model on your customers’ purchasing activity based on 100 variables.
Assume that the number of observations (i.e. data points) greatly exceeds the number of variables. After fitting your data using an Ordinary Least-Squares (OLS) approach, you observe that one of your variables has a p-value of 0.03.
Which of the following can you infer about the relationship between this variable and the amount a customer will spend?
A. The low p-value implies that there may be a link between the variable and the amount a customer will spend, but you cannot say anything about causation
B. The low p-value implies that it is very unlikely that the observed relationship between the variable and the amount a customer will spend is due to random chance
C. The low p-value implies that the variable explains most of the variation between the amounts that different customers will spend
D. The low p-value does not necessarily say anything significant about the relationship between the variable and the amount a customer will spend
Select one:
- 1 only
- 4 only
- 1 and 2 only
- 2 and 3 only
Question 2
Consider the following two scientific problems:
- Identifying defective airbags
- Announcing whether the atmosphere of some remote planet contains water based on observational evidence.
Which of the following statements is MOST accurate? (Note: Precision is the ratio of true positives to all predicted positives, recall is the ratio of true positives to all actual positives, and accuracy is the ratio of true positives and negatives to all actual positives and negatives.)
Select one:
A) Airbag testing needs high recall, and water identification needs high precision
B) Airbag testing needs high precision, and water identification needs high recall
C) Both scenarios need to maximize the average of precision and recall
D) Both scenarios need to maximize the accuracy
E) Both scenarios need to maximize the precision
Question 3
Which model best describes the independence assumptions in Naive Bayes inference for features {X₁, X₂} and class label Y?
Select one:
Question 4
You want to build a model that predicts the next line of code you type. You want millions of points of training data, but you only have a few thousand files with a few thousand lines each.
What type of training data would be best to use?
Select one:
A) Your model takes as input an entire text file with one missing line, and outputs a prediction of that missing line
B) Your model takes as input the top k lines of a file and outputs the k + 1st line
C) Your model takes as input the last k lines and either a fake or real previous line, and predicts whether or not that preceding line is real or fake
D) Your model takes as input all the function signatures of the code, and predicts, given random lines from the dataset, whether they appear in the same file or not
E) Your model takes as input one random line from the code, and tries to predict the line that comes after
Question 5
You are building a decision tree and want to choose the attribute which gives the most informative splitting between two classes, A and B. The nodes corresponding to the attributes are used to classify four data points from A and four data points from B.
If each node has exactly two children, which of the following decisions yields the MOST information gain?
Select one:
A) The one that sends 3 data points from A and 2 data points from B to the left node
B) The one that sends 2 data points from each class to the right node
C) The one that sends 3 data points from each class to the right node
D) The one that sends 0 data points from A to the right node and 3 data points from B to the left node
E) The one that sends 2 data points from A to the right node and 4 data points from B to the left node
Programhelp 的 Merck OA 代写辅导经验｜无痕协助，全流程稳控
我们辅导过一位来自 UCSD 的硕士同学，他当时备考 Merck 软件岗，学术背景很不错，刷题能力也没问题，但因为平时实战经验不足，加上对英文题干理解有压力，所以特别担心 OA 的整体节奏。最终他选择了我们 Programhelp 的远程无痕代写辅导方案，全程由我们技术导师团队协助完成，保证效率与安全。
整个流程我们都有提前彩排过，从耳机信号、网络环境、摄像头死角，到答题顺序、语音节奏，都做了多轮测试，确保真正做到“无痕执行 + 全程稳控”。这位 UCSD 的同学最终在 70 多分钟内顺利完成所有题目，代码通过率高，格式工整，拿下了 Merck 的 VO 邀约，整个 OA 过程没有留下任何异常记录。
不要再孤军奋战
如果你也在准备 Merck 或其他 biotech / 大厂 OA，担心英文题干、算法难度或时间压力，欢迎联系我们 。我们提供一对一定制的远程无痕代写 + 语音引导协助服务，覆盖 OA、VO 全流程，让你考试不慌、结果稳定。
