• 2022-06-16
    Primary care are supposed to be the vital pillar of any health care system.
    未知类型:{'label': 'questionDesc', 'content': '请指出以下句子中的错误。', 'isMemberControl': 0, 'type': 181}
    未知类型:{'label': 'source', 'content': '粉笔英语独家模拟卷 六级 仔细阅读2', 'isMemberControl': 0, 'type': 181}
    A: are supposed to
    B: Primary care
    C: the vital pillar
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