ω-技巧某些应用中的不妥

对传统的ω类型技巧作了各种改进.简要讨论了不恰当应用该技巧的例子,详细描述了获得结果所必需的订正.

BIOLOGICAL EFFECTS OF HUMAN GROWTH HORMONE GENE MICROINJECTED INTO THE FERTILIZED EGGS OF LOACH Misgurnus anguillicaudatus (Cantor)

At the end of 1982, Palmiter, Brinster et al. reported that mice of superb growth had been created through microinjection of a hybrid gene coding for rat growth hormone into the male pronuclei of mouse fertilized eggs. This work ushered in a new approach to develop new breeds of domestic animals with a method of foreign gene trans-formation. We infer that fish, on a lower level of evolution in vertebrata,

乡村风景

岁月1李从中老人每天的事情就是从溪滩上挑几担石头,砌在自家木屋旁边的石堤上,再挑几担土填在石堤里面。木屋旁边的石堤他已经砌一年多时间了,再挑百来担石头,百来担土,就大功告成了。石堤五米多高,十多米长,跟那阵在集体时砌的水利塘坝石堤都是不能比的,但他已是八十多岁的老人,砌这样的石堤,是多么的不容易。其实,这道石堤砌与不砌跟李家并没有多大的关系,李家住在村口,田地也在村口。李从中是在做好事。十年前,怡溪涨大水,百年不遇。