会计师事务所、律师事务所、资产评估机构等中介服务机构不按照规定履行报告义务，提供或者

We must work hard to _____ a good knowledge of English.[ ]

A. take

B. acquire

C. catch

D. hold

It's reported that the United States uses __________ energy as the whole of Europe every year.   [ ]

A. as twice        

B. twice much as    

C. twice as much    

D. twice much

为什么说土壤是微生物生长发育的良好环境？

《学记》说：“道而弗牵，强而弗抑，开而弗达”，这与以下哪一原则的精神符合( )

A．直观性原则
B．启发性原则
C．巩固性原则
D．循序渐进原则

熟鸦片呈（）色。

A、黑灰

B、深褐

C、浅黄

D、银白