<img alt="" src="data:image/png;base64,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">(单选题)
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.<img alt="" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA4AAAAdCAYAAACaCl3kAAAA0klEQVQ4EdWT4Q2EIAyFWcEZHMYRmIEV2IAN3IAJmIAFWIAN2KGXR66JlurljD+0iRFqv74HgqGLYS5y9GbQOUfGmOGRe7FbY62Vcs5kraXWGsUYaV1XyfT5DuSKZVn6EA1KKZzevQcQhbCLmKapg3AiYwChBosMsvpPUBYczQfFo0KZfwCo/XzObe0+wOrWztn4XqspJZrnud8Q770qrCrijOJ84txiR7XQs99KwH8pguO7qakhpyrCItaJCCH0JrKBCvLGaCeGG6ggfzx7vwj8AODo8259RCikAAAAAElFTkSuQmCC">
出自:2024年国家开放大学答案