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满分100分,考试时间150分钟 一、选择题:在下列各题的四个选项中,只有一项是符合题目要求的.将所选项前的字母填在题后括号内.每一选择题2分,共18分.1.近年来赤潮在我国时有发生,当赤潮发生时,海水中的某些微小浮游生物大量繁殖,使水体呈红、紫等颜色,并对生物造成危害.(1)?
Out of 100 points, the test time is 150 minutes. 1. Multiple-choice questions: Only one of the four options for the following questions is consistent with the requirements of the topic. Put the letter before the selected item in the brackets after the question. Each multiple-choice question 2 Points, a total of 18 points. 1. Red tides have occurred in China in recent years. When red tides occur, some micro plankton in the sea water multiply, making the water red, purple and other colors, and causing harm to the organism. (1 )?