招标人在发布物业管理招标公告或发出投标邀请书应当载几日内向房地产行政主管部门备案，主

某校学生放学回家经过一建筑工地，遇见窃贼正在偷建筑材料。下列是几个人的不同意见，其中正确的是[ ]

①窃贼是大人，我们斗不过他们，保护自己，不理他们是上策 ②拨打“110”报警电话 ③暗地里跟踪，看他们把材料偷到哪里去，好为将来破案提供线索 ④一人去报警，其余的人悄悄跟踪，不能让那几个家伙跑掉

A．①②③　

B．②③④　　

C．①②④　　

D．①③④

用于氰化物中毒的是（）

A．亚甲蓝 

B．纳洛爵 

C．阿托品 

D．乙酰胺 

E．亚硝融盐-硫代硫酸钠

– It is said that Frank is very rich and is always changing his private cars .What is he?

–_______ of a manager, I am not sure.

A．Somebody

B．Anyone

C．Something

D．Anything

电子商务相关法律问题包括（）.

A.市场准入问题

B.电子合同问题

C.电子商务物流问题

D.电子签名问题

Questions 81-90 are based on the following passage.

It sounds like a science fiction, but researchers say it’s a scientific fact: Microscopic organisms dubbed "killer algae" are paralyzing fish with unknown toxins and then eating away at their flesh. They might be making people sick, too.
The name given to this single-cell organism, or dinoflagellate, is Pfiesteria piscimorte- literally, "fish killer. " It was discovered at North Carolina State University in 1988, but at the same time, few scientists believed in its existence, much less in its highly unusual predatory nature. But ongoing research has led to international acknowledgment of the phenomenon and, recently, research funding.
Seemingly prompted by an unknown substance secreted by fish, the aggressive creature swims into action. It sends neurotoxins into the water and air, paralyzing a fish’s nervous system, and causing it to gasp for air at the surface. Eventually the fish suffocates. The killer dinoflagellate then attaches itself to the fish and begins sucking away at its flesh. This macabre scenario may help solve several sea mysteries, such as why fishermen report seeing "fish walks" (fish trying to leave the water) and pools of dead fish with holes eaten through them.
Whether humans are affected by the dinoflagellate’s toxin remains to be seen. Researchers think it’s unlikely eating fresh fish are in danger, but anyone with frequent exposure to the creature could be in peril. Several researchers working with the algae have reported bouts of memory loss and disorientation.
To understand the killer algae further, scientists must fully characterize their toxin and determine what stimulates them to attack. They also need to know if the algae are hurting fish populations, and whether pollutants make them more likely to attack.

The word "prompted" underlined in Paragraph 3 means ______.

A. stimulated
B. attracted
C. annoyed

D. shocked