搜元素提供国外优质的免版权矢量素材资源免费下载,该资源的中文名称是:Cross-sectional studies RGB color icon. Clinical trials of drugs in control group. Data of medical research. Isolated vector illustration. Simple filled line drawing. Editable stroke. Arial font used,英文名称是:Cross-sectional studies RGB color icon. Clinical trials of drugs in control group. Data of medical research. Isolated vector illustration. Simple filled line drawing. Editable stroke. Arial font used,该资源由网友上传,提供高速下载。