国家不同,文化也不同。学校不同,学年亦不同。当我们满载着希望去迎接新学年的到来时,可能身在异国的同龄人正享受着假期所带来的......

Endoscopic ultrasound(EUS) was introduced in 1982 and has since become a popular advanced procedure for diagnosis and th......

The Miaoershan uranium(U)ore field in northeastern Guangxi is one of the important granite-related U deposits in south C......

在做工程概预算时，由于受市场经济的冲击，工程报价中出现了可竞争部分为零的现象，通过对利润和安全文明施工增加费两方面的讨论分析，论......