在手指末端交接的经脉是
A.手之阳经与手之阴经B.手之阳经与足之阳经C.手之阴经与足之阴经D.足之阳经与足之阴经E.手之阳经与足之阴经
参考答案:A
— It's dangerous to swim here. Look at the sign.
— Oh, I ______ notice it. Thanks for telling me. [ ]
A. haven't
B. won't
C. don't
D. didn't
目前市场上销售的饮料大多数都是碳酸饮料,其中溶有大量的二氧化碳气体,请你用学过的知识验证打开汽水瓶盖时冒出的气泡中含有二氧化碳。将实验设计及相关内容填入下表中: