名词解释题抗病性(resistance to disease)

名词解释题
抗病性(resistance to disease)

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The answers to the problem,the scientists say,is to build up the immune system,which not only will give greater( )to disease but will boost cellular regeneration and improve the skin. A.persistence B.insistence C.resistance D.instance

MRC是什么的缩写?()A、Modular Radio ConnectB、Modular Resistance CabinetC、Modular Radio CabinetD、Modular Resistance Connect

抗病性(resistance to disease)

根据寄主品种的抗病力与病原物生理小种的致病力之间的关系,植物抗病性可分为()。A、垂直抗性B、形态结构抗病性C、水平抗性D、化学抗病性E、微效多基因抗病性

垂直抗病性(vertical resistance)

垂直抗病性是只对病原物特定小种有效的抗病性。

抗逆性(resistance)

按照抗病机制,植物抗病性可以分为物理抗病性和化学抗病性。

植物抗病性有不同的分类办法,你认为哪种办法最能反映抗病性的本质?

微效基因抗病性(minor gene resistance)

非小种专化抗病性(race-nonspecific resistance)

主效基因抗病性(major gene resistance)

试比较植物被动抗病性因素与主动抗病性因素的异同。

According to Ohm’s Law, which of the following is correct?()A、As voltage increases, resistance decreasesB、As amperage decreases, resistance decreasesC、As resistance decreases, amperage increasesD、As resistance increases, voltage increases

名词解释题微效基因抗病性(minor gene resistance)

名词解释题主效基因抗病性(major gene resistance)

问答题试比较植物被动抗病性因素与主动抗病性因素的异同。

单选题If a voltmeter is connected across a line, it must be protected with a()AshuntBhigh-resistance coil in the armature circuitClow-resistance coil in the armature circuitDshunt and a coil of high resistance

单选题For practical purposes, in a simple series circuit, the source voltage will be dropped across one resistor if it has().Ahalf the resistance of the other resistorBa resistance equal to the otherCat least ten times the resistance of the otherDa partial short circuit

多选题根据寄主品种的抗病力与病原物生理小种的致病力之间的关系,植物抗病性可分为()。A垂直抗性B形态结构抗病性C水平抗性D化学抗病性E微效多基因抗病性

判断题按照抗病机制,植物抗病性可以分为物理抗病性和化学抗病性。A对B错

单选题垂直抗病性与水平抗病性不同之处主要在于垂直抗病性是()。A小种特异抗病性B主基因抗病性C对各种病原小种的抗性接近一个水平D呈现高抗或免疫

单选题According to Ohm’s Law, which of the following is correct?()AAs voltage increases, resistance decreasesBAs amperage decreases, resistance decreasesCAs resistance decreases, amperage increasesDAs resistance increases, voltage increases

名词解释题诱发抗病性(inducing resistance)

名词解释题小种专化抗病性(race-specific resistance)

单选题Most conducting materials such as copper, aluminum, iron, nickel, and tungsten ().Aincrease in resistance with increased temperatureBincrease in resistance with decreased temperatureCdecrease in resistance with increased temperatureDincrease in conductance with increased temperature

名词解释题非小种专化抗病性(race-nonspecific resistance)