Scientists say it may be five or ten years________ it is possible to test this medicine on human patients. |
[ ] |
A. since B. when C. after D. before |
根据n多题专家分析,试题“Scientists say it may be five or ten years________ it is possible to test this medicine on human patients.[ ]A. since B. whenC. after D. before…”主要考查了你对 【从属连词】 等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。
与“Scientists say it may be five or ten years________ it is possible to test this medicine on human patients.[ ]A. since B. whenC. after D. before”考查相似的试题有: