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问题 多项选择题

仿真中要先进行（）的预测，其他预测需要进行覆盖仿真后才能预测

A.PCCPCH RSCP

B.PCCPCH EbNo

C.PCCPCH BeStSeRveR

D.业务CoCeRAge

答案

参考答案：A, B, C

选择题

— Where have you been?

— I         in the heavy traffic. Otherwise I         here earlier.[ ]

A. got stuck; would have come

B. got stuck; was

C. have got stuck; would have come

D. Had got stuck; would come
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选择题

化学变化与物理变化的本质区别是（　　）

A．有新物质生成

B．状态发生变化

C．放热、发光

D．有气体生成
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