• 2022-06-16
    In a recent study _____ over 400 healthy adults, researchers from Carnegie Mellon University in Pennsylvania examined the effects of…
    未知类型:{'label': 'questionDesc', 'content': '请选择正确答案', 'isMemberControl': 0, 'type': 181}
    未知类型:{'label': 'source', 'content': '2017年英一完形', 'isMemberControl': 0, 'type': 181}
    A: collecting
    B: involving
    C: guiding
    D: affecting
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