某市要兴建一大型的水上公园，需要征用某乡土地66亩，建设单位经市政府土地管理局批准之后即对该地进行征用。该乡几户农民因与建设单位在征地补偿费上发生纠纷，提请市政府予以裁决，市政府作出了强制性补偿的决定，但农民对此决定不服。对此，几户农民应该怎么办？（）
A．只能向市政府请求解决，而不能提起诉讼
B．应当以建设单位为被告提起民事诉讼
C． 应当以建设单位为被告提起行政诉讼
D．应当以市人民政府为被告提起行政诉讼
参考答案：D
解析：市政府的强制性补偿决定是具体行政行为，而不是抽象行政行为。因此，应当以市人民政府为被告提起行政诉讼。建设单位不是行政机关，不能成为行政诉讼的被告。
| Lichens may grow on the bark of a tree in a steaming tropical rain forest, on the bricks of big city buildings, on rocks in hot springs, on wind-swept mountaintops, and in the driest desserts. In the arctic, they provide the principal food for caribou, and they are one of the few plants that grow in Antarctica. They are pioneers, appearing in barren rocky areas and starting the formation of soil in which mosses, then ferns, and then other plants can take root. Lichens are a partnership of two plants — fungi and algae. The lichen body is made up of a network of fungal strands. In the upper layers of these grow groups of algae. The two organisms live together to the benefit of both, a relationship known as symbiosis. The fungi provide support, absorb water, and shelter the tender algae from direct sunlight. The algae carry on photosynthesis and provide the fungi with food. The algae can live independently and are recognizable as a species that grows alone. The fungi, on the other hand, cannot live apart from their partners. They can be placed in known classes of fungi but are unlike any species that lives independently. So definite are the form, color, and characteristics of these double organisms that for hundreds of years, they were classified as one. More than 15,000 "species" were named. If these organisms are classified as separate species, it is difficult to fit them into the existing system of classification. But if they are classified separately, these species of fungi seem rather strange. Lichens are a splendid example of the difficulties faced by taxonomists in classifying species. |
According to the passage, the algae ______ .
A．may not carry on photosynthesis alone
B．supply food to the fungi
C．can’t live separately
D．aren’t recognizable as a species