单项选择题7. After the harvest, we had an abundant amount of apples. We made apple pie, apple sauce, and apple juice because we had so many apples. A、a shortage B、not enough C、very red D、plentiful
单项选择题人工挖孔桩时，为预防坍塌要求采用间隔开挖，且相邻排桩跳挖的最小施工净距不得小于()mA.4 BB..5C.5D.5.5
