Correct Answer: B

Rationale: A diagnostic test is a medical test or procedure performed to identify the cause of a health problem, disease, or condition. It helps healthcare providers make accurate diagnoses and determine appropriate treatments for patients. Choice A is incorrect because a diagnostic test does not locate a cure but rather aims to identify the cause of a health issue. Choice C is incorrect as a diagnostic test is not specifically for examining the skin but can involve various types of tests on different parts of the body. Choice D is incorrect as a diagnostic test is not performed on doctors but on patients to diagnose their health conditions.

Correct Answer: C

Rationale: Inhibiting means to prevent, restrain, or impede. In the context of the sentence, inhibiting the action of a certain enzyme refers to hindering or slowing down the enzyme's activity. Choice A ('Occupying') is incorrect as inhibiting does not mean taking up space. Choice B ('Speeding') is incorrect as inhibiting does not mean to accelerate. Choice D ('Enhancing') is incorrect as inhibiting is the opposite of enhancing.

Correct Answer: B

Rationale: The word 'mercurial' in this sentence means unpredictable or prone to sudden changes in mood or behavior. Justin's temperament can be characterized as unpredictable, which is causing him to not work well with others. Choice A, 'Continuous,' does not align with the meaning of 'mercurial' as it implies a steady, uninterrupted flow. Choice C, 'Mercenary,' refers to being primarily motivated by money or reward, which is not the context here. Choice D, 'Miraculous,' means extraordinary or remarkable, which is not the intended meaning in this sentence.

Correct Answer: D

Rationale: To cauterize a wound is to use heat or a chemical to burn the wound in order to stop bleeding and prevent infection. This process helps seal off blood vessels and close the wound by burning the affected tissue. Choice A, 'soothe it,' is incorrect because cauterization involves burning the wound, which is a controlled way of treating it, not soothing it. Choice B, 'cover it,' is incorrect as cauterization involves a more aggressive approach than just covering the wound. Choice C, 'stitch it,' is incorrect as it refers to using sutures to close a wound, which is different from cauterization that involves burning the wound to seal it.

Correct Answer: A

Rationale: Qualms refer to feelings of doubt, hesitation, or uneasiness about something. They are typically used to describe a person's reservations or concerns about a decision or action. This aligns with the meaning of 'misgivings,' making it the correct choice in this context. Choices B, C, and D are incorrect. 'Habits' refer to regular tendencies or practices, 'Serenity' refers to a state of calm or peace, and 'Dispatches' refer to sending off to a destination or taking care of a task promptly, none of which capture the meaning of 'qualms.'