麦当劳学位

科学60秒:食无苦, 饭无忧

A food additive that blocks our bitter taste receptors could make foods like broccoli more palatable. Karen Hopkin reports They say you should take the bitter with the sweet. But if you’re not a...

科学60秒:跟着钱走没有错

Look at a map and you can tell right away where New York ends and New Jersey begins. But that official border is not a of how the community is really shaped. Because northeastern Jersey is effec...

短文：出售小狗

出售小狗A store owner was tacking a sign above his door that reads, “puppies for sale”. A little boy appeared under the store owner sign. “How much are you going to sell the puppies for?” He ...

晨读美文020

晨读美文Suppose someone gave you a pen — a sealed, solid-colored pen. You couldn’t see how much ink it had. It might run dry after the first few tentative words or last just long enough to cr...