在今日10时的家属沟通会上，马航工作人员向家属表示，目前马来西亚外交部已向南北走廊上所有国家发出外交照会，并请求这些国家提供支持和协助，包括雷达和卫星信息、海陆空搜救行动、相关国家的搜救行动计划及马来西亚请求提供的信息等。目前已有26个国家参与搜救，几乎涵盖南北走廊的所有国家。 为这段新闻拟写标题，恰当的一项是：
A.马航组织家属沟通会
B.马来西亚请求援助搜救工作
C.马航与家属协商搜救工作
D.马方已向多国发出外交照会
参考答案：D
解析：解析 本题为标题填入类题型，而且文体风格已经阐明为新闻类，提炼首句导语的主谓宾即可。 考点：标题选择题
| 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 statements is true
A．Scientists have solved the mystery about the fish killer.
B．More studies need to be made about the fish killer.
C．It is proved that the algae are reducing fish populations.
D．Humans have already been affected by the toxin.