某填料的比表面积为220m2/m3，空隙率为97%，则该填料的填料因子为（）。 A. 发布时间：2018-01-11 14:33 │ 来源：www.tikuol.com 题型：单项选择题 问题： 某填料的比表面积为220m2/m3，空隙率为97%，则该填料的填料因子为（）。A.241.05B.233.82C.226.80D.0.004
题型：单项选择题 完形填空。 Many people think the 1 time is spent, the more work will be done. So students have to spend the whole day doing school work 2 the three meals. Modern students have many 3 . They love sports, computers and music. A 4 holiday can get them away from too much school work, and they can do what they like. But still teachers do not 5 it. Because they have too much homework, they have no time to enjoy themselves. Students are really tired of their weekend homework. So they don't do it 6 Sunday night. And there is not enough time to finish the homework carefully. The poor weekend homework usually makes teachers 7 . Things always get worse 8 right ideas. Too much school work makes students lose 9 in learning. It's also bad for their health. A horse runs faster after a rest. But for students only a rest is not enough. So such a condition (状况) should be 10 to give students both pleasure and knowledge. ( )1. A. many ( )2. A. except ( )3. A. hobbies ( )4. A. two days ( )5. A. talk about ( )6. A. on ( )7. A. to get angry ( )8. A. to ( )9. A. interested ( )10. A. changed B. much B. for B. books B. two-days B. think about B. except B. get angry B. by B. interest B. kept C. more C. during C. pens C. two-day C. speak of C. after C. to feel unhappyC. without C. interesting C. taught D. most D. with D. friends D. two-day's D. look after D. until D. quite surprisedD. with D. themselves D. made 查看答案
题型：单项选择题 下列各句中，没有语病的一项是（ ）(3分)A．不仅韩剧《来自星星的你》有爱情的美好，有穿越时空的奇思妙想，也有诚实守信、谦恭礼让的传统美德，而且充满了时尚文化元素，给中国观众留下了深刻印象。B．“余额宝”是由国内第三方支付平台“支付宝”打造的一项全新的余额增值服务，这类产品兴起的根本原因是与利率没有市场化、存在较大的存款差价有莫大关系。C．俄罗斯外交部网站在3月28日公布的消息中指出，联合国大会在前一天通过的确认克里米亚公投无效的决议无效，并呼吁国际社会共同努力稳定乌克兰局势。D．《舌尖上的中国2》摄制组历时半年，遍访各地美食，足迹踏遍全国各个省份以及部分海外城市，走访拍摄近100个地点。 查看答案
题型：单项选择题 冬季，人们常用甘油溶液护肤，使皮肤保持湿润．质量分数为80%的甘油溶液护肤效果最好．用质量分数为90%的甘油溶液配制80%的甘油溶液900g，需加水的质量为（ ）A．75gB．100gC．400gD．900g 查看答案