根据《关于实行建设项目法人责任制的暂行规定》，建设项目董事会的基本职责是()。A.组

关于箱涵顶进的说法，正确的是()。

A.箱涵主体结构混凝土强度必须达到设计强度的75% 

B.当顶力达到0.9倍结构自重时箱涵未启动，应立即停止顶进 

C.箱涵顶进必须避开雨期 

D.顶进过程中，每天应定时观测箱涵底板上设置观测标钉的高程

新生儿脐血中Ig水平增高表示有宫内感染的是

A．IgM

B．IgA

C．IgE

D．IgD

E．IgG

Passage 1: The Blacks had never been rich enough to spend their summer holidays in a luxurious place. This year, however, Mr. Black made a lot of money and his wife said that she would like to go to Rome for a change. Mr. Black thought it’s a good idea. He said they should stay at a really good hotel while they went around the famous city.They flew to Rome, and arrived at their hotel late one evening. They thought that they would have to go to bed hungrily because no meals were served in cheap hotels where they used to stay. They were therefore surprised when the waiter asked whether they would be having dinner there at night.“Are you still serving dinner now” asked Mrs. Black. “Certainly, madam.” answered the waiter. “We serve it until half past nine.”“What are the time for meals then” asked Mrs. Black.“We serve breakfast from seven to half past eleven in the morning, lunch from twelve to three, tea from four to five and dinner from six to half past nine.”“But that hardly leaves any time for us to see the sights of Rome!” said Mrs. Black in a disappointed voice.

This year Mr. Black ________ a lot of money.

A．printed

B．owed

C．earned

D．borrowed

从法律意义上来说，在投标有效期内，投标人的投标文件对投标人具有法律约束力，投标人不得对其补充、修改和撤回，这体现了招标人编制招标文件应遵守( )的规定。

A．招标文件的内容要体现公平
B．招标文件的澄清、修改和答疑
C．确定编制投标文件的合理时间
D．招标文件应当规定一个适当的招标有效期

《城市低保条例》规定，持有非农业户口的城市居民，凡共同生活的家庭成员人均收入低于当地城市居民最低生活保障标准的，均有从当地人民政府获得基本生活物质帮助的权利。