So why don't we just use cellulosic ethanol? Professor: Well, the problem is that the current method for processing cellulose into ethanol is very expensive and can't be done on a large scale. See? Currently there are two key steps in the process. The first is breaking the cellulose ...
Point source pollution has an identifiable source, and you can find the specific point where, say, one particular pipe is dumping pollutants into the bay, and then treat the water right there where the pollution's coming from. And that's what's happened over the past 30 years or so. Mod...
a没事的,我可以理解你 Is all right, I may understand you[translate] aturn the power off and then restart 关闭电源然后重新开始[translate] aHow was your trip to London, Jane? 怎么是您的旅行到伦敦,珍妮?[translate] aDid you wr i te any external examinat ions such as TOEFL, IELTS, SAT ...
Student Uh-huh. You’re right. I’m a transfer student. I’ve already done a year at another university, so I know how the research can go—I’ve spent a lot of time in the history section. So how long can I borrow books for? Librarian Our loan period is a month. Oh, I shoul...
in part because they address students' fears that theycan't afford higher education. "People who wouldn't otherwise think that they could go to college, or who think the reason they can't is because it's too expensive, [will] stop, pay attention, listen, decide it's an opportunity they...
Now this is a good point to mention one of the biggest myths about spices: It’s commonly said that medieval Europeans wanted spices to cover up the taste of spoiled meat, but this isn’t really true. Anyone who had to worry about spoiled meat couldn't afford spices in the first place...
B. To find out how to improve the first draft of a paper she is writing C. To ask the professor to recommend sources of information for a research paper D. To get advice about a possible topic for a research paper 你的答案: 正确答案:D 题目解析: 登录 后才能查看题目解析,还没有账...
Another scenario is that, without pennies, merchants, instead of charging 4.98, might round up the price to an even five dollars. 另一种情况是,没有便士,商人,可能会把价格定成整数到甚至五美元,而不是4.98。 So consumer goods would become slightly more expensive. ...
None of that is mailed off campus. 不会寄校外邮箱的。 Girl: Well, I worked at the college newspaper, so I should be able to keep on top of what's going on. 女生:嗯,我在校报工作,所以我应该能够及时知道发生了什么。 Plus there's a bulletin board outside the dining hall. ...
One problem is the desire to escape a trade-off between shutting down to keep people alive and staying open so that life goes on. The right lauds Sweden for supposedly letting the virus rip while it makes a priority of the economy and liberty. But Sweden has a fatality rate of 58.1 per...