问题
选择题
| The sign reads "In case of _____ fire, break the glass and push _____ red button." |
A. 不填; a B. 不填; the C. the; the D. a; a |
答案
答案：B
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| The sign reads "In case of _____ fire, break the glass and push _____ red button." |
A. 不填; a B. 不填; the C. the; the D. a; a |
答案：B