关于经纬线的说法正确的是() A.沿任何一条经线北行,均能回到原地 B.通过地球表面 发布时间:2018-11-26 22:36 │ 来源:www.tikuol.com 题型:单项选择题 问题: 关于经纬线的说法正确的是()A.沿任何一条经线北行,均能回到原地B.通过地球表面任何一点都只有一条经线C.全球所有的经线都不等长D.除赤道和极点以外,相同纬度的纬线都有两条
题型:单项选择题 根据所提供的语景,从方框中选择正确短语的适当形式完成句子。(其中有三个多余词) leave sb alone, be aware of, cut off, sort out, at no time, turn around, aim at, be scared to death, ahead of, cut down, at a time, in the meantime, meet with1. They had their electricity ________________________ because they didn't pay the bill on time.2. ________________________ will China be a superpower. 3. It's not good to give the child whatever he wants. _______________________ when he is crying. 4. Hearing her name called, the little girl _____________________ and was surprised to see her aunt standing at the gate waving to her. 5. My homework has been completed ______________________ time. 6. The visit is ____________________ improving the relations between the two countries. 7. Seeing a stranger break into her house, she _______________________ of what might happen next.8. We should at all times _______________________ our own shortcomings. 9. I think you are the most humorous man that I ______________________. 10. My first novel was rejected by six publishers. _______________________ I had written a play. 查看答案
题型:单项选择题 下图表示某淡黄色固态单质A及其化合物之间的转化关系(某些产物和反应条件已略去)。B和C的相对分子质量相差16,化合物D是重要的工业原料。(1)单质A的名称 。(2)写出E与A的氢化物反应生成A的化学方程式___________________________。(3)写出一个由D生成B的化学方程式____________________________________。 查看答案
题型:单项选择题 下面关于FLASH导入Fireworks的PNG文件的说法错误的是()A、用户可以选择作为可编辑对象或不可编辑的图像进行导入B、当作为不可编辑的图像导入时,文件将转换成位图图像对象,但是导入矢量图形除外C、作为可编辑对象导入,用户可以选择保留位于PNG文件中的图像、文本和辅助线D、作为不可编辑的图像导入PNG文件,则用户可以在Flash中启动Fireworks编辑该PNG图像 查看答案