设函数f(u,v)由关系式f[xg(y),y]=x+g(y)确定,其中函数g(y)可

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问题:

设函数f(u,v)由关系式f[xg(y),y]=x+g(y)确定,其中函数g(y)可微,且g(y)≠0,则

______.

考点:普通考研考研数学(三)考研数学三微积分
题型:问答题

下列各句中,标点符号使用正确的一句是(   )(3分)

A.按照“行政处罚法”规定,严重的骚扰电话一旦被查清,骚扰人可被施以行政拘留的处罚。

B.然而她是从四叔家出去就成了乞丐的呢?还是先到卫老婆子家然后再成乞丐的呢?那我可不知道。

C.不良的食物搭配不仅可能引发不适,甚至有可能导致中毒,如萝卜与橘子,白酒与柿子,牛奶与巧克力,牛肉与粟子,梨蕉与芋头,花生与黄瓜等等。

D.把这份迟到的书信插在娘冷寂的坟头,“娘,儿出息了,您听到了吗?您可以含笑九泉了!”我喃喃自语着。

题型:问答题

流式细胞仪分选器的组成和细胞分选原理是什么?

题型:问答题
It was early in the morning, on a lonely road. It's 1  heavily. A 9-year-old boy was in the car with his mother, who was 2  him to school. Suddenly, the car went off the road, rolled  several times, and came to rest upside down in a ditch (沟渠) filled with water.
Luckily, both the mother and son were 3  seatbelts. The mother suffered a blow to her head and was unable to move. The boy was frightened but 4 . As water came through broken windows in the car, he 5  unbuckled (解开) himself, climbed out of the  passenger  window, made his way around to the driver's side, and reached inside the 6  to free his trapped mother. With great effort, he managed to 7  her, pull her through the window and up to the road, where they were soon 8  .
His mother later recalled her experience of the 9  . Being unable to move or even  speak   to offer instructions (指导) or encouragement to her son, she was  10  by her little son's action. She recalled hearing  her boy saying out loud as he pulled her through the water, “I think I can, I think I can!”
It seemed clear    that this little boy's act of courage was from one of his favorite books: The Little Engine that Could. In that  11  , when everyone else had  12  hope, the Little Engine carried the heavy load of toys and good things to eat over the hill to the children waiting on the other side. He had 13  and took action. Obviously this book had left a 14  impression before the accident that rainy 15  and motivated (激励) the son to take action if the terrifying moments.
小题1:
A.snowing B.smokingC.blowingD.raining
小题2:
A.orderingB.drivingC.pushingD.flying
小题3:
A.makingB.watchingC.wearingD.missing
小题4:
A.afraidB.deadC.tiredD.unhurt
小题5:
A.quicklyB.carefullyC.nearlyD.happily
小题6:
A.boxB.roomC.carD.ditch
小题7:
A.respectB.introduceC.recognizeD.free
小题8:
A.acceptedB.rescuedC.welcomedD.fed
小题9:
A.accidentB.experimentC.travelD.fire
小题10:
A.excitedB.frightenedC.woundedD.amazed
小题11:
A.poemB.noticeC.storyD.dream
小题12:
A.realizedB.wakenC.kept upD.given up
小题13:
A.courageB.food C.spaceD.time
小题14:
A.badB.deepC.falseD.general
小题15:
A.afternoonB.nightC.morningD.evening
题型:问答题

肝硬化患者进行血清蛋白醋酸纤维素薄膜电泳染色后可见()

A.ALB降低

B.α1球蛋白降低

C.α2球蛋白升高

D.β球蛋白升高

E.β-γ桥

题型:问答题

“知之为知之,不知Google知。”一学生在谈Google在生活学习中的作用时如是说。过去人们习惯于去图书馆查阅资料,而现在人们越来越多地依赖于网络。Internet的信息检索工具有很多,如果不用Google搜索引擎,下列可以替代的是( )。

A.QQ、E—mail
B.Word、WPS
C.百度、YaHoo
D.Photoshop、Flash

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