在SCI E数据库中检索废水中苯酚的降解研究，最佳检索式为： A: ts=(("waste water" or wastewater) and degradat*) B: ts=(("waste water" or wastewater) and phenol and degradat* and stud*) C: ts=(("waste water" or wastewater) and phenol and degradat*) D: ts=(phenol and degradat*)

“黄”这个字描述的是河水浑浊的颜色。 A: The word "yellow" describes the muddy water of the river. B: The word "yellow" describes the color of the muddy water of the river. C: / D: /

关于web of science 的检索技术，说法正确的是： A: 逻辑运算符为NOT，AND，OR B: 通配符包括：*，?，$ C: 词组必须置于双引号中，如"waste water" D: 可跨库检索

In plastic products, containers with this kind of logo are usually used for making A: mineral water bottle. B: soda bottle. C: plastic milk bottle. D: plastic "space Cup".

Word中插入数学公式的方法是（）。 A: "插入"→"形状"→"公式" B: "开发工具"→"公式" C: "插入"→"公式"→"插入新公式" D: "引用"→"插入"→"公式"

定义并初始化一个用于存放我们国家的四个直辖市的数组cityName，四个直辖市为：北京，上海，天津，重庆. 正确的是_________ A: String[] cityName=new String[4]{"北京","上海","天津","重庆"}; B: String[] cityName=new String[]{"北京","上海","天津","重庆"}; C: String[] cityName={"北京","上海","天津","重庆"}; D: String cityName = new String[4] { "北京", "上海", "天津", "重庆" };

已知有一个名为names的空列表,如何向其中添加old_driver,rain,jack,shanshan,peiqi,black_girl 元素？ A: names.append("old_driver","rain","jack","shanshan","peiqi","black_girl") B: names.extend("old_driver","rain","jack","shanshan","peiqi","black_girl") C: names.insert("old_driver","rain","jack","shanshan","peiqi","black_girl") D: names.extend(["old_driver","rain","jack","shanshan","peiqi","black_girl"])

以下哪个选项是正确的json数据格式： A: { "id": 2, "userName": admin, "passWord": 12345, "email": admin@qq.com} B: { id: 2, userName: "admin", passWord: "12345", email: "admin@qq.com"} C: { "id": 2, "userName": "admin", "passWord": "12345", "email": "admin@qq.com",} D: { "id": 2, "userName": "admin", "passWord": "12345", "email": "admin@qq.com"}

The best irrigation water is river water, pond water and lake water A: 正确 B: 错误

What water is used in the production of injection A: pure water B: purified water C: water for injection D: sterile water for injection