It's called if a manafacturer achieves lower costs due to the enlarged production capacity of the whole industry. A: internal economies of scale B: externaleconomies of scale C: overlapping demand

① 集成电路（IC）按照集成度的大小可分为小规模集成电路（SSI），中规模集成电路（MSI），大规模集成电路（LSI），超大规模集成电路（VLSI），极大规模集成电路（ULSI），请问哪些单词的缩写是正确的 A: IC：integrated Circuits SSI：Small Scale Integration B: IC：integrated Circuits SSI：Super Small Integration C: IC：integrity Circuits SSI：Super Small Integration D: SSI：Small Scale integrity ULSI: Ultra Large Scale Integration

It is a valuable ( scale / skill ). A: scale B: skill

In Malaysia, Christmas is celebrated on a small ____________. A: degree B: level C: scale D: percent

Arithmetic operations are appropriate for A: only the ratio scale B: only the interval scale C: the nominal scale D: None of the above answers is correct.