解决建筑施工劳务纠纷的对策有:()
A、推行建筑业劳务基地化管理;
B、施工总承包企业要优选劳务队伍;
C、签订劳务合同;
D、收取劳工有效抵押证件;
参考答案:A, B
—What did you have __ _ dinner?
—I had some Chinese rice.[ ]
A. to
B. with
C. for
双向皮碗清管器使用中的故障有哪些?