費米是1938年諾貝爾物理學獎獲得者，他不僅是一位天才的科學家，也是一位善於啓發人的教育家。費米提出這樣一種処理難題的思維方式： 你聽到一個問題，可你對問題的答案絲毫都不知道，你肯定會認爲所提供的信息或已知條件太少了，因而無法解決它；

BEIJING, Nov. 6 from a government spokesman said in a statement, British Prime Minister Johnson 5 sent a telegram to Pre

Reference Information Network on 6 November, the report claimed, U.S. lawmakers and White House official local time on 5

Facebook(194.32, -0.40, -0.21%)The user of the platform was again faced with a crisis of confidence. Facebook said

Time of Beijing of dispatch of sina science and technology, on 6 November, the morning news, the FCC approved the merg

NEW YORK (AP) - Sina news Beijing standard time on Dec. 6, according to the Forbes rich list in real time, the Frenc

FIG. is' in the scene of the meeting (Photo by: Chen Wen Jie) Sina Financial, a US eastern time on November 5,The w

Last night, the Thunder's share price in U.S. stocks soared as the largest shareholder in Xunlei (28% shareholding), Xia