在管棚超前预支护的作用下开挖，可以防止和，以保证施工过程中的安全。
查看答案
短管棚一般长达小于米
A. 5
B. 8
C. 10
D. 12
What did Jacques’ company want to do?
A. To find someone to design and carry out the advertising activities.
B. To hire an advertising agency to do an investigation.
C. To interview the person he speaks to.
D. To employ a person for advertising department.
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