手术持续时间超过该类手术的特定时间，或一般手术＞（ ）就可考虑预防性使用抗生素。

Apart from a price list of transformers, what else does...

未知题型Apart from a price list of transformers, what else does Mr. Guan Li offer in his quotation package?
______ and ______.

若两因素之间交互作用可以忽略不计，我们就可以考虑设计两因素无重复的试验。（

判断题 若两因素之间交互作用可以忽略不计，我们就可以考虑设计两因素无重复的试验。（  

In this part, you are asked to write a composition on t...

未知题型In this part, you are asked to write a composition on the title of 'My Aim for Doctoral Study' with no less than 200 English words. Your composition should be based on the following outline given in ChinesE.Put your composition on the ANSWER SHEET.
1. 你攻读博士学位的目标是 ______.
2．你确定这一目标的原因是 ______.
3．你将如何努力实现。