语言描写的作用

大肠杆菌培养时如何判断有无杂菌感染 stand on the left here are two pens,you can use__of themA both Beither说明原因好吗 There's a house ____ the trees. 公派去美国攻博,需要托福和GRE的成绩吗? I mean you drink too much把you drink too much画线提问.Take the madicine three times a day.把three times a day画线提问.You should eat a little food.把 a little food画线提问 There is a stone _______ the trees.用between还是among? You drink too much 意思 You ___________drink too many soft drink__________.A.do,south B.shouldn't,too C.shouldn't,either 小圣施威降大圣 孙悟空是个怎样的人二郎神又是个怎样的人 小圣施威降大圣中体现人物特点的句子 孙悟空在《小圣施威降大圣》表现什么精神 《小圣施威降大圣》中二郎神对孙悟空的称呼总在变化着 这说明了他的什么特点? 谁知道一首诗叫野田黄雀行,开头是高树多悲风 高树 极限 如果m+n=2 1/3,m-n=3 1/2,则4(n-m)=____.2-3/7m-3/7n=____. 梅将雪共春,彩艳不相因.的作者.早梅发高树,迥映楚天碧.的作者.雪似梅花,梅花似雪.的作者 若m,n互为相反数,则7m+2012+7n=多少 （ ）的高树 求代数式最大值 其中m,n是在[0,1]的实数 .... 什么是信道冲激响应 ,OFDM的信道估计中 OFDM正交性怎么证明? OFDM正交频分复用为什么频谱叠加不互相干扰正交的概念我知道,只是不知道为什么正交之后频谱叠加了不会互相干扰啊.“OFDM系统中各个子信道的载波相互正交,它们的频谱是相互重叠的,这样 已知2分之派 There is a growing _____ among doctors.There is a growing _____ among doctors of the need for more prevention treatment.A.recognitionB.improvementC.definitionD.pressure怎么翻译啊? There were also some singers in Valley Park.（改为否定句） There were not_____singers in Valley ParkThere were not_____singers in Valley Park_____. 《小圣施威降大圣》本文是围绕哪个字推进故事情节的 已知角a∈[0,2π）,绝对值cos a 如果在比例尺为1：100000的地图上量得AB两地间的距离是5厘米,那么AB两地间的实际距离为 米 完形填空：My husband and I traveled to London for some days.We went there in__1__.We think完型填空　　My husband and I traveled to London for some days.We went there in 1 .We think it's the best time to visit England.The 2 is usually pleas 已知函数f(x)=log0.5(x^2-ax+3a)在区间【2,正无穷）上是减函数,则a的取值范围? 《小圣施威降大圣》主要内容