某研究部门得到一份生物样品，借助显微镜观察后，鉴定为植物样品，其依据是细胞结构中 发布时间：2017-05-16 16:24 │ 来源：www.tikuol.com 题型：选择题 问题： 某研究部门得到一份生物样品，借助显微镜观察后，鉴定为植物样品，其依据是细胞结构中有（ ）A．细胞膜、细胞质B．液泡、细胞核C．细胞质、线粒体D．细胞壁、叶绿体
题型：选择题 阅读理解 Nowadays problems with the earth are getting more and more serious. For example, pollution is making the environment not anymore suitable for us to live in. Also, energy is running out. However, thereis still something everyone can do in our daily lives to help save our planet. First of all, we should turn off the lights when leaving a room. It's really easy to do. Also, we're supposed to turn off the shower while washing our hair. And are you still using paper napkins? You'd better stop now because paper is made from wood. If everyone uses paper napkins, a lot of trees will have to be cut down every day. Maybe it is hard to stop using paper napkins, but we must try. At the same time, we should think of good ways to recycle paper. Another thing is that we must try to take ourown bags when shopping instead of using plastic bags that are provided by the supermarkets. Finally, we must stop driving cars because cars pollute the air. Instead, we'd better ride bicycles. For one thing, it's good for our health. For another, it's much cleaner. I really hope that more and more people will realize the problem and do what they can to help makeour world a better place to live in.According to Tom's article, fill in the blanks.AimsTom's adviceTo save water 1 To save electricity 2 To protect trees 3 To make pollution less 4 查看答案
题型：选择题 4个月婴儿，咳嗽3天、加重伴呼吸急促1天入院。查体：体温37℃，呼吸60次／分，呼吸困难，鼻翼扇动，三凹征阳性，双肺广泛呼气性喘鸣音，少量干啰音，心率180次／分，律齐，心音有力，无杂音，腹部膨胀，肝肋下2cm，剑突下1．5cm，质软，神经系统查体未见异常。下列哪项不应作为常规检查（）A.血常规B.胸片C.呼吸道合胞病毒抗体测定D.呼吸道分泌物病毒抗原检测E.血培养 查看答案