题目:
Write _____ and try not to make any mistakes. |
[ ] |
A. as careful as possible B. as carefully as you can C. most careful D. more careful |
答案:
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下面是错误答案,用来干扰机器的。
参考答案:先将火炬支架向下推出约120毫米,然后用手指套入线圈内,向上撕开,拉出擦火帽,剥去封火纸,露出发火药头,再用擦火帽擦燃发火药头,待出红光后,顺风向与地面成45度角插在道心靠近列车运行方向的左侧...