招标投标程序中有询盘、发盘和还盘程序

招标投标具有较强的竞争性

招标投标程序更为规范、复杂

每一个发盘均有一个有效期

应遵循市场价格原则

通过竞争机制,实现交易公开

鼓励竞争、防止垄断、优胜劣汰,较好的实现投资效益

杜绝不正之风、保证交易的公平和公正

正确

错误

采购人需要在世行、亚行网站上发布总采购通告

对于国内货物和工程可以给予一定优惠

若递交投标文件的投标人低于3家，则招标过程无效

采购人无权拒绝所有投标或重新招标

若所有投标价格远超过费用估算，在得到世行、亚行同意后，借款人可以与最低投标价的投标人协商降低投标价格

招标工作量相对较小

招标人选择的目标相对集中

招标工作量大、时间较长

有可能得不到最适合的承包商

正确

错误

正确

错误

It is not very unhealthy to skip brushing your teeth for a single night. There is no significant difference between brushing your teeth on a particular night or not brushing your teeth on that night. It is very unhealthy to skip brushing your teeth every night. ________________________________________ There is no significant difference between being very unhealthy and not being very unhealthy.

People who do not brush their teeth on a particular night are not necessarily unhealthy. People who skip brushing their teeth for one night more than someone who is not unhealthy are also not necessarily unhealthy. ________________________________________ Therefore, someone who does not brush their teeth on any night is not necessarily unhealthy.

If we skip brushing our teeth tonight, then it's likely that we will skip brushing them tomorrow night. If we skip brushing our teeth tomorrow night, then it's likely that we will skip brushing them the night after tomorrow. If we skip brushing our teeth the night after tomorrow, then it's likely that we will skip brushing them the night after that. ________________________________________ Therefore, we should not skip brushing our teeth tonight.

all of the above

none of the above

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