按下列线段长度,可以确定点A、B、C不在同一条直线上的是[ ] A.AB=8cm

题型:选择题

问题:

按下列线段长度,可以确定点A、B、C不在同一条直线上的是[ ]

A.AB=8cm,BC=19cm,AC=27cm

B.AB=10cm,BC=9cm,AC=18cm

C.AB=11cm,BC=21cm,AC=10cm

D.AB=30cm,BC=12cm,AC=18cm

考点:直线,线段,射线
题型:选择题

Our choice color can mirror(反映) our feelings normally .when we are sad ,we will wear dark-colored clothes .But when we are happy ,we often choose to wear bright-colored clothes.

Some people don’t believe the idea. There are a lot of researches(调查)about what happens to someone’s feelings when they wear just one color of clothes. It shows that wearing particular(特定的) colors of clothes can change our feelings.

Suppose we are feeling sad, we may feel worse if we wear black. And if we wear green, red or yellow, we may begin to feel better.

It’s said that color has its own healing power( 治疗作用). If we are wearing red, we would feel we have more energy. If we are wearing green, we would feel we are more peaceful(平静的). If you are wearing black, we will feel safer.

So, if you aren’t feeling your best, you can try on some different colored clothes.

小题1:______ can make us feel better about ourselves.

A.Wearing the same color of clothes

B.Sharing your feelings with others

C.Wearing different colors of clothes

小题2:When we feel _____, we often choose to wear bright-colored clothes.

A. sad   B. happy    C. angry

小题3:If we are feeling sad, we may feel worse when we wear _____.

A. red    B. black     C. green

小题4:We will feel more _____ if we are wearing green.

A. excited  B. peaceful  C. safe

小题5:From this passage we know _______ can change our feelings.

A. colors    B. weather  C. news

题型:选择题

放大摄影下,使用0.05mm的超微焦点X线管,半影阈值为0.2mm,那么最大放大率是()

A.3倍

B.4倍

C.5倍

D.6倍

E.8倍

题型:选择题

将玉米种子纵剖开,可以看到如图所示结构:

(1)①______具有保护种子内部结构的作用

(2)③将来发育成______.

(3)⑥将来发育成______.

(4)③④⑤⑥合称______,将来发育成______.

(5)种子萌发时,⑥______最先突破种皮.

题型:选择题

表虚自汗,首选方剂是( )

A.当归六黄汤

B.玉屏风散

C.生脉散

D.牡蛎散

E.桂枝汤

题型:选择题

货物装卸加固的基本要求是什么?

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