在()时。可以不进行招标。
A、需要采用不可替代的专利或者专有技术A
暂无解析
You____thatlettertoJames.However，youdidn't.
Mymotherwasdeterminedtohelpthoseinneedandshewouldhavebeenimmenselyproudofwhathasbeenachievedtheselast20years.Theitalicizedpartinthesentenceexpresses_______.
Ibelievethatremark____fromwhatyousaidyesterday.
____thecenterofourplanetarysystemwasconsideredasheresybythechurchintheMiddleAges.
Toobtainasatisfactoryresult，onemustapplytwo____ofpaintonacleansurface.
