用振动、冲击或水冲等方式在软弱地基中成孔后,将碎石或砂挤压孔中,形成大 直径的碎石或砂所构成的密实桩体。碎石符合级配要求,粒径 ________ mm, 含泥量应小于 ________ %
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The applicant should arrive ahead of the interview.
A. 对
B. 错
We can not manke preparation before an interview.
A. 对
B. 错
We can wear casual clothes when having a formal interview.
A. 对
B. 错