【单选题】关于电气防火,下列那种做法不正确______。
【简答题】20世纪80年代,天津市政建设跟不上,人民群众生活存在许多实际困难,“坐车没有走路快,自来水腌咸菜,临建拆得没有搭得快”,群众意见很大。市政府决心为群众办实事,一件一件地解决落实,说到做到,样样兑现。1983年,首先为市民办了10件实事,从1984年开始每年坚持为城乡人民办20年实事,到已办了130 件。如新建、改建了3000万平方米的住宅,等于解放以来前30年建房总数的3 倍,使一半以...
【单选题】According to the passage, the more protein a rat consumes, the lower will be the
A.
ratio of the rat' s blood-tryptophan concentration to the amount of serotonin produced and released in the rat's brain.
B.
ratio of the rat's blood-tryptophan concentration to the concentration in its blood of the other amino acids contained in the protein.
C.
ratio of the rat's blood-tyrosine concentration to its blood-leucine concentration.
D.
number of neurotransmitters of any kind that the rat will produce and release.
E.
number of amino acids the rat' s blood will contain.
【单选题】According to the passage, the following explanatory variables accounts for naked mole rat behavior. EXCEPT ______.
【单选题】关于电气防火,下列那种做法不正确______。