现给你如下器材:钢尺一把、木梳一把、音叉、乒乓球(系细线)、皮筋、鼓、纸张、小锤

题型:实验题

问题:

现给你如下器材:钢尺一把、木梳一把、音叉、乒乓球(系细线)、皮筋、鼓、纸张、小锤.请你任选器材,设计一个有关声现象的实验.提出问题:猜想或假设:器材:设计实验:探究结论:

考点:音调与频率的关系
题型:实验题
完形填空。
Mr. Smith works in New York. Last month he had a fifteen-day holiday, but he didn’t know where to spend it. He spoke to his friend Bill,“I   1  the hot weather, but I can’t find a cool place in America. How should I spend my holiday?”
“That’s easy, ” said Bill, “You’d   2  to Moscow. Snow and ice are covering the ground now. ”
Mr. Smith agreed   3  his friend. He bought an air ticket and soon   4  Moscow. He had a happy trip there, but one day he   5 . After lunch he went outside the city, he saw a dog  6  him while he   7  past(走过) a house. The dog was hungry and wished him to give it some food to eat. Bad luck! He had no piece of bread or cake in his pockets. He tried to drive it away. But it began to bark at(对……大叫) him. He wanted to look for a stick but he couldn’t find anything   8  snow and ice. Suddenly he saw a stone on the ground. He hurried to  9 but failed.
“How strange Russians are!” Mr. Smith said to himself, “They don’t tie dogs, but firmly (紧紧地)  10  the stones. My God!”
小题1:
A.likeB.unlikeC.not like D.hate
小题2:
A.would goB.would not goC.better goD.better to go
小题3:
A.toB.withC.atD.about
小题4:
A.arrived inB.arrive inC.reachD.reached in
小题5:
A.made a mistakeB.get into trouble C.got into troubleD.find the trouble
小题6:
A.to followB.is following C.followed D.following
小题7:
A.was walkingB.walkedC.was crossing D.crossed
小题8:
A.exceptB.besidesC.besideD.without
小题9:
A.picked it upB.picked up itC.pick it upD.pick up it
小题10:
A.tiedB.liedC.tieD.lie
题型:实验题

肝硬化患者出现内分泌紊乱,下列哪项不正确()

A.醛固酮增多

B.血管升压素增多

C.雌激素增多

D.肾上腺皮质激素增多

E.垂体前叶分泌功能受抑制

题型:实验题

( )是根据监督主体与监督对象的隶属关系划分的。

A.国家权力机关监督
B.审判机关监督
C.内部监督
D.社会监督

题型:实验题

干态交联时,一般预烘温度控制在(),焙烘温度控制()。

题型:实验题

电流负荷箱的允许误差应按()计算。

A、负荷值

B、负荷值减去接线电阻

C、负荷值加上接线电阻

更多题库