The U.S. exulted 40 years ago when it brought its three Apollo 13 astronauts back safely from a disaster in space. Early Wednesday morning, Chile . . . can celebrate its own finest hour as it rescues its 33 miners from the abyss.
He speaks with more passion than ever, lighting into George W. Bush for fumbling the economy.
We say that 𝜙 is universal iff it can be written in prenex form — i.e. with all quantifiers at the beginning — using only universal quantifiers.
The DDT powder does not kill the rats; it merely defleas them and lessens the likelihood of the spread of typhus fever from rat to man.
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DiQt（ディクト）
無料
★★★★★★★★★★
