1. Chemistry is considered an exact science because its principles and laws are consistent and predictable.
化学被认为是一门严密的科学，因为它的原则和法则是一致和可预测的。

2. Mathematics is often referred to as an exact science because its conclusions are based on logical reasoning and precise calculations.
数学通常被称为一门严密的科学，因为它的结论是基于逻辑推理和精确计算的。

3. Physics is another example of an exact science, as it relies on mathematical equations to describe natural phenomena.
物理学是另一个严密科学的例子，因为它依赖于数学方程式来描述自然现象。

4. In medicine, diagnosis is not always an exact science, as it often involves interpretation of symptoms and test results.
在医学中，诊断并不总是一门严密的科学，因为它经常涉及对症状和检查结果的解释。

5. Astronomy is considered an exact science because it relies on precise measurements and observations of celestial bodies.
天文学被认为是一门严密的科学，因为它依赖于对天体的精确测量和观察。

6. Computer programming is often seen as an exact science, as it involves writing code that follows logical rules and algorithms.
计算机编程通常被视为一门严密的科学，因为它涉及编写遵循逻辑规则和算法的代码。