问题
选择题
| It is in 1960 _____ Chinese first put out flag on Mount Qomolangma. |
A. when B. that C. which D. in which |
答案
答案：B
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| It is in 1960 _____ Chinese first put out flag on Mount Qomolangma. |
A. when B. that C. which D. in which |
答案：B