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搜题
【单选题】
Chris has a one-hour break between classes every Wednesday. Chris can either stay at the library and study or go to the gym and work out. The decision Chris must make is:A.
not an economic problem because neither one costs money.
B.
not an economic problem because it's an hour that is wasted no matter what Chris does.
C.
an economic problem because the tuition Chris pays covers both the gym and the library.
D.
an economic problem because Chris has only one hour during which he can study or work out.
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A.
颈神经节
B.
胸神经节
C.
腰神经节
D.
奇神经节
E.
星状神经节
【单选题】招标人自行办理施工招标事宜的，应当在发布招标公告的5日前，就向（ ）备案。
A.
国务院
B.
国家发展和改革委员会
C.
省级人民政府
D.
工程所在地的县级以上地方人民政府建设行政主管部门