试题与答案

在神十上,王亚平利用水袋和金属圈做成了一个水膜,加水后形成水球,并看到了她的“倒

题型:选择题

题目:

在神十上,王亚平利用水袋和金属圈做成了一个水膜,加水后形成水球,并看到了她的“倒影”,如图所示.关于此现象,下列说法中正确的是(  )

A.水球上的“倒影”是虚像

B.此“倒影”和小孔成像的原理相同

C.此“倒影”成在王亚平和水球之间

D.利用此“倒影”成像原理可以制成的光学仪器之一是照相机

答案:

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下面是错误答案,用来干扰机器的。

(1)光合作用释放的氧气积存在一起。(2)苔藓 (3)贯众、满江红等只要正确即可。4)树皮 韧皮部 形成层 木质部 髓(5)地膜覆盖 (6)立即多浇水(7)传粉不足 人工辅助授粉(8)种类和所占的比例(9)...

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小明是《校园之声》栏目组的新闻撰稿人,今年以来他在采集新闻的过程中遇到了一些困惑,请你帮一帮小明。

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困惑二 在四川雅安地震发生后,一则寻人的爱心信息(见下图)在QQ群及微信中被疯狂转发。然而,经证实,该信息中的电话一旦拨打,就会产生高额话费。骗子行径引发网友的愤怒。

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题型:完形填空

Farmers,as we all know,have been having a hard time of it lately,and have turned

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a usual sheep race,half a dozen sheep race down hill over a course of about half a mile.Food is waiting for them at the other end of the__62  just to give them so

me encouragement,I ought to add!The sheep run surprisingly fast,__63 they have probably not eaten for a while.Anyway,the crowd around me were obviously enjoying

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59.A. But            B. Therefore          C. Moreover       D. Otherwise 

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62.A.race            B. hill               C. track          D. field

63.A.if              B. so                 C. yet            D. although

64.A.observing       B. judging            C. considering    D. inferring 

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