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问题 多项选择题

在待解除预警的待核实查看页签下每个人可以查看到（）的预警。

A.指定由我解除；

B.指定由别人解除；

C.未指定解除人；

D.以上都对

答案

参考答案：A, C

口语交际，情景问答题

概括下面一则新闻的主要信息，不超过20个字（4分）

2010年4月23日华北网消息）数十年来，华北农业实现了对“南粮北调”局面的扭转，农业的高速发展依赖的正是一口口的机井对地下水的掠夺性开采。官方通报显示，华北地下水超采达1200亿立方米，相当于200个白洋淀，在华北平原，200万口机井遍布田间地头，正在透支着华北的未来。一位专家氽绍说：“真实的情况可能更严重，透支的地下水估计已近2000亿立方米。”
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单项选择题

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.

Which of the following questions is answered according to the information given in the passage

A. What is the toxin used by the fish killer
B. Who first discovered the organism
C. How does the fish killer paralyze fish
D. How many fishes can the organism kill each day
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