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Which one of the following is considered to be an advantage of the heading and benching method of tunnel construction? | |
A. | It is suitable for construction in unstable rocks. [Wrong Answer] |
B. | In this method, it is easy to install timber support. [Wrong Answer] |
C. | Tunnelling can be continuous and the work can be expedited. [Correct Answer] |
D. | In case of excessive water, it is easy to take correct steps. [Wrong Answer] |
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