在一个DNA分子中，若A所占的摩尔比为17.2%，则G的摩尔比应为A．67.2%B． 发布时间：2017-12-21 07:02 │ 来源：www.tikuol.com 题型：单项选择题 问题： 在一个DNA分子中，若A所占的摩尔比为17.2%，则G的摩尔比应为A．67.2%B．32.8%C．17.2%D．65.6%E．16.4%
题型：单项选择题 选词填空。pay cost take spend1. Travelling around Paris by taxi can _____ a lot of money. 2. You will _____ a lot of money if you travel around Paris by taxi. 3. I _____ fifty dollars for the dress. 4. The dress _____ me fifty dollars. 5. It _____ me fifty dollars to buy the dress. 6. I _____ fifty dollars on the dress. 7. I _____ an hour in cleaning my house every day.8. It _____ me an hour to clean my house every day.9. It _____ me fifty dollars. 查看答案