Correct Answer: A

Rationale: The correct answer is A: 'Empty.' Vacuous means lacking intelligence, empty-headed, or devoid of substance. Choice B, 'Full,' is incorrect as it is the opposite of vacuous. Choice C, 'Dense,' means closely compacted or stupid, not vacuous. Choice D, 'Bright,' means giving out or reflecting a lot of light, not vacuous.

Correct Answer: A

Rationale: Regulations refer to rules or directives established by authorities to govern conduct or actions. Therefore, the correct answer is A - 'Rules for Conduct.' Choice B, 'Official Standards,' is incorrect as regulations go beyond just setting standards to include specific rules for behavior. Choice C, 'Personal Guidelines,' is incorrect as regulations are not individualized but are generally applicable rules. Choice D, 'Suggestions,' is incorrect as regulations are mandatory and carry legal weight, unlike suggestions which are optional and not binding.

Correct Answer: B

Rationale: The correct answer is B. Distal means further away from the point of attachment. This term is commonly used in anatomy to describe the location of a body part relative to the point of attachment or the trunk. Choice A is incorrect because it describes the term Proximal, which means closer to the point of attachment. Choice C is incorrect as it describes the term Medial, which means toward the middle of the body. Choice D is incorrect as it describes the term Superficial, which means on or near the surface.

Correct Answer: B

Rationale: The correct answer is B, 'Wide open'. Gaping refers to something being wide open, not partially closed (choice A), narrow (choice C), or sealed (choice D). In the context of the question, 'Gaping' describes something that is open widely.

Correct Answer: B

Rationale: The correct meaning of the word 'Augment' is 'to add to something.' Therefore, choice B, 'Add to,' is the correct answer. Choices A, C, and D are incorrect because they all suggest actions that involve reducing or decreasing something, which is the opposite of augmenting.