At the age of 29, Dave was a worker,  _____ in a small apartment near Boston and ______ what to do about his future.

A．living; wondering

B．lived; wondering

C．lived; wondered

D．living; wondered

投标人获得招标文件之后，应该重点研究招标文件中的（）。

A.投标人须知

B.投标书附录与合同条件

C.技术说明

D.保留金数额

E.永久性工程之外的报价补充文件