Correct Answer: C

Rationale: In this context, the word 'accountable' means responsible. The night nursing staff is responsible for those records, meaning they are the ones who are answerable and expected to ensure proper care and maintenance of the records. Choice A, 'Receptive,' does not fit the context as it means willing to listen or accept information. Choice B, 'Notorious,' means famous or well-known, usually for something negative, which is not the intended meaning here. Choice D, 'Preoccupied with,' means to be engrossed or absorbed in something, which does not convey the meaning of being responsible as intended in the sentence.

Correct Answer: B

Rationale: The word 'contraindicated' means not recommended or inadvisable in this context. It suggests that using aspirin for children with high fevers is not a good idea or is not suitable. The other options (A. Banned, C. Anticipated, D. Expedient) do not accurately convey the meaning of the word 'contraindicated' in this sentence. 'Banned' implies a prohibition, 'Anticipated' means expected, and 'Expedient' means convenient or practical, none of which capture the intended meaning of 'contraindicated.'

Correct Answer: C

Rationale: The correct answer is C: 'Read thoroughly.' The word 'perused' means to read or examine carefully or in detail. It does not imply passing judgment, engaging in, or taking notes. Choices A, B, and D are incorrect because 'perused' specifically refers to reading thoroughly, not making judgments, participating in, or taking notes.

Correct Answer: A

Rationale: In the context of the sentence provided, efficacy refers to the ability of counterfeit medicines to produce the intended or desired effect. Efficacy is closely related to effectiveness, which is the correct description in this context. 'Significance' (Choice B), 'Corollary' (Choice C), and 'Conclusion' (Choice D) do not accurately capture the meaning of efficacy in this context.

Correct Answer: A

Rationale: In the context of the sentence, 'volatile' means likely to change rapidly and unpredictably or evaporate quickly. When referring to liquids, volatile typically implies that the liquids are unstable and can easily change from liquid to gas. Therefore, the most appropriate meaning of 'volatile' in this sentence is 'unstable.' Choices B, C, and D are incorrect because 'abnormal' and 'lethal' do not capture the essence of rapid change or evaporation associated with volatile liquids, while 'blended' is unrelated to the characteristics of volatile liquids described in the sentence.