儿童的肾脏恶性肿瘤，多数为（） A.肾腺癌 B.肾母细胞瘤 C.肾盂癌 D.转移性肾 发布时间：2018-09-11 22:54 │ 来源：www.tikuol.com 题型：单项选择题 问题： 儿童的肾脏恶性肿瘤，多数为（）A.肾腺癌B.肾母细胞瘤C.肾盂癌D.转移性肾癌E.肾淋巴瘤
题型：单项选择题 根据短文内容，用方框中所给词的适当形式填空。（其中有一词多余)be only small at still from look use There are millions of stars in our sky. If you look 1________ the sky on a clear night, it is possible to see about 3000 stars. They 2_______ small, but they are really very big hot balls of burning gas. Some of them are huge, but others are much 3_______, like our planet Earth. The biggest stars are very bright, but they 4_______ live for a short time. Every day new stars 5______ born and old stars die．All the stars are very far away .The light 6_______ the nearest star takes more than four years to reach Earth.Hundreds of years ago, people 7________ stars, like the North star, to know which direction to travel in. Today you can still see that star. 查看答案
题型：单项选择题 回首钱学森先生的一生，可算是生命不息，创新不止。他的物理力学就是将稀薄气体的物理、化学和力学特性结合起来的研究，主张从物质的微观规律确定其宏观力学特性，改变过去只靠实验测定力学性质的方法，并开拓了高温高压的新领域。可见，创新（）A.是不崇拜任何东西，否定一切B.是对既有理论、实践批判和发展C.是几个事物相加成一个新的事物D.是唯物辩证法的要求和本质 查看答案