An exporter cannot receive payment until the goods on consignment()sometime in the future.
A. have offered for sale
B. are quoted
C. arrive at destination
D. have been sold
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下列哪个是长丝酸浴的比热()
A. 0.78
B. 0.98
C. 1
D. 2
当井下作业人员的矿灯熄灭时,可以到附近进风巷道中打开检修。
A. 正确
B. 错误
社会群体成员形成某种稳定的结构关系,产生出特定的相互作用模式。
A. 正确
B. 错误