青少年科普杂志推荐稿英语范文带翻译

and human initiative and inventiveness are such that even this wouldn't succeed. All it would do is slow down the rate of change.

Scientists discovered that "junk DNA," the base pairs between known genes in the human genetic structure, play an important role. Several research teams have found that DNA between genes helps determine how

一个半世纪的科学探究至今仍未解决这个1 。它明确指出，薄层液体水对上方的坚冰，导致slipperiness 。流体的流动性使人们难以对步行，即使层是薄的。但没有consenus至于为何冰不同于大多数其他固体-有这样的层。

Rats that eat high levels of a natural sugar known as fructose seem to age faster than other rats---and the same could be true for people who eat too much sweet junk food, Israeli researchers said Monda