下班后,当我回家走进客厅,我那12岁的儿子抬头望着我,说"我爱你"的时候,我竞无言以对.足足有几分钟,我站在那里,打量着儿子,等着他说下去,我首先想的是,他肯定想要我帮他做作
Maize head smut is a worldwide disease,widely occurred in most maize fields. The disease had occurred in large area in the late 1970 s,and became a limiting fac
[Objective]The paper was to select the effective fungicides to control broad bean chocolate spot.[Method]Seven different fungicides were selected and sprayed in
(接12月9日8版)$$ 二、用特殊构件增强建筑的表现力$$ 在进行大型复杂公共建筑设计时,建筑师有时希望结构外露,直接用结构构件表现建筑效果,减少额外的建筑装饰。对构件的截
The indoor and field control effect of fipronil against termite was introduced,and the main influencing factors were analyzed,including traverse transfer of fip
《北京晚报》报道,最新一期《科学》杂志发表了以中国农业大学刘金华教授为第一作者,包括中国科学院微生物研究所高福研究员以及中国科学院动物研究所雷富民研究员、基因组研究
为了控制严重的传染性疾病,减少经济损失,养殖生产者往往通过接种疫苗来达到目的.为保证疫苗的免疫力,减少免疫失败的因素,现将注意的几个问题归纳如下.
The paper was to study the effects of different cultivation patterns( mix cultivation and monocultivation) of wheat on population structure of Puccinia striifor
口蹄疫(Food and Mouth Disease,FMD)是由口蹄疫病毒(FMDV)引起的偶蹄动物的一种急性、热性、高度接触性传染病,被国际兽医局列为头号A类传染病。该病的传播途径很多,曾多次在许多国
昨天是端午节,这一天你是怎么过的?媒体发起的关于端午节民俗习惯的调查显示,93.2%的受访者表示,在端午节吃粽子是必不可少的事。除了吃粽子,赛龙舟是人们最耳熟能详的端午习俗,知