The efficiency of turbocharge system is increased by fitting a charge air cooler （） the compressor.

[单选题]The mechanical efficiency of an engine （） because losses occur in the form of friction.A . is always less than 100%B . is always more than 100%C . is always equal to 90%D . is always less than 90%

[试题]Iwasimpressed_______theefficiencyoftheworkdoneinthecompanyA．)inB)aboutC)withD)for

[主观题]配置效率Allocative efficiency

[主观题]静态效率（Static efficiency）

[主观题]经济效率（Economic efficiency）

[名词解释] 经济效率（Economic efficiency）

[名词解释] 静态效率（Static efficiency）

[名词解释] 配置效率Allocative efficiency

[名词解释] 诊断效率(efficiency of　diagnosis)

[单选题]A securities market exhibits operational efficiency if it offers:A.Lowtrans