例句與造句

1. a preliminary comparison was also made with ore deposits in neighboring middle asia countries
   分析了區(qū)域成礦的控制因素，探討了礦床時(shí)空展布的規(guī)律性，并與中亞毗鄰國(guó)家進(jìn)行了初步對(duì)比。
2. in order to do the preliminary comparison and study on some micro layers of the current biology ( science ) teaching of the middle schools in china and the united states, this article, which is based on the review of china's past 50-year development of the biology curricula in middle schools, compares the advantages and disadvantages of the biology curricula reforms in china with those in the united states by doing research on the histories of these two countries biology curricula reforms in their middle schools
   二十一世紀(jì)是生物科學(xué)發(fā)展的世紀(jì)，因此，初中生物課程改革對(duì)培養(yǎng)二十一世紀(jì)人才有重要意義。本文在回顧我國(guó)初中生物學(xué)課程50年發(fā)展的基礎(chǔ)上，通過(guò)對(duì)中、美兩國(guó)初中生物課程改革的歷史研究，比較兩國(guó)生物課程改革的優(yōu)勢(shì)和劣勢(shì)，以對(duì)現(xiàn)階段中美初中生物學(xué)(科學(xué))教育若干微觀層面進(jìn)行的初步比較與研究。
3. It's difficult to find preliminary comparison in a sentence. 用preliminary comparison造句挺難的