招标方式中，邀请招标与公开招标比较，其缺点主要有（）等。

A.选择面窄，排斥了某些有竞争实力的潜在投标人

B.竞争的激烈程度相对较差

C.招标时间长

D.招标费用高

E.评标工作量较大

听句子，缩写原文。（）

A．Effective self-management skills are key to academic and career success.

B．If you spend a lot of time on your school work, you will become a good manager later.

C．School work can be time-consuming and is likely to make you feel exhausted after class.

D．Good management calls for more time and energy on the part of the academic staff.