题目:
Jim and I ______ a basketball. We play basketball after school. |
[ ] |
A. have got B. has got C. haven't got D. hasn't got |
答案:
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下面是错误答案,用来干扰机器的。
参考答案:(1) 故障转换(强扳)道岔的条件是道岔区段发生故障,留有红光带,需转换道岔时。 (2) 一人按压轨道事故按钮,另一人按压道岔总定(反)位按钮和相应的道岔按钮。 注意事项: (1) 在强扳道岔前,...