宋朝时，原产越南的优良水稻品种占城稻已推广到[ ] A、珠江流域 B、两湖一带

发布时间：2017-05-18 11:44 │ 来源：www.tikuol.com

题型：选择题

问题：

宋朝时，原产越南的优良水稻品种占城稻已推广到[ ]

A、珠江流域

B、两湖一带

C、成都平原

D、江淮一带

考点：南方农业的发展（占城稻）

题型：选择题

下图曲线反映某种商品需求、供给和价格的关系，不考虑其他因素，可以推断

①价格在P₁时，该商品市场状况为供过于求，价格下降

②价格在P₂时，生产者将缩小生产规模

③价格P₂→P₀时，该商品的替代品需求量上升

④价格P₂→P₀时，该商品的互补品需求量上升

A．①②

B．②③

C．①③

D．②④

查看答案

题型：选择题

x2+y2-6x-4y+9=0

查看答案

题型：选择题

完形填空。

     It was Thanksgiving morning and in the crowded kitchen of my small home I was busy preparing the
traditional Thanksgiving turkey when the doorbell rang. I 1 the front door and saw two small children in
2 huddling(挤作一团)together on the top step.
     "Any old 3 , lady ?"asked one of them. I was busy. I wanted to say "no" until I looked down at their
feet. They were 4 thin little sandals(凉鞋), wet with heavy snow.
     "Come in and I'll make you a cup of hot 5 ".
They walked over and sat down at the table. Their 6 sandals left marks upon the floor I served them
coffee and bread with jam to fight against the cold 7 . Then I went back to the 8 and started again on
my household budget.
     The silence in the front room 9 me, so I looked in. The girl held the 10 cup in her hands, looking at it.
The boy asked in a flat 11 ,"Lady, are you rich?" "Am I rich? Mercy, no!"I looked at my shabby slipcovers(破旧的沙发套). The girl 12 her cup back in saucer(茶托)carefully and said, "Your 13 match you saucers. "Her voice was hungry with a need that large amount of food could supply. They left after that, 14 their
bundles of papers against the wind. They hadn't said "Thank you". They didn't 15 to. They had reminded
me that I had so much for which to be 16 . Plain blue china cups and saucers were 17 worth five pence.
But they matched.
     I moved the chairs back from the fire and cleaned the living room. The muddy 18 of small sandals were
19 wet upon my floor. "Let them be for a while, "I thought. Just 20 I should begin to forget how rich I am.

( ) 1．A．opened
( ) 2．A．needs
( ) 3．A．clothes
( ) 4．A．selling
( ) 5．A．wine
( ) 6．A．big
( ) 7．A．upwards
( ) 8．A．kitchen
( ) 9．A．struck
( )10．A．glass
( )11．A．noise
( )12．A．called
( )13．A．cups
( )14．A．grasping
( )15．A．dare
( )16．A．crazy
( )17．A．well
( )18．A．road
( )19．A．already
( )20．A．in case

B．closed
B．rags
B．blankets
B．enjoying
B．beer
B．black
B．outside
B．bedroom
B．melt
B．empty
B．sound
B．brought
B．chairs
B．holding
B．forget
B．mysterious
B．only
B．images
B．really
B．even if

C．tied
C．tears
C．papers
C．borrowing
C．tea
C．wet
C．downtown
C．living room
C．moved
C．valuable
C．voice
C．went
C．plates
C．catching
C．need
C．ripe
C．quite
C．prints
C．never
C. as

D．fixed
D．sickness
D．toys
D．wearing
D．coffee
D．loose
D．indoors
D．dining room
D．shocking
D．broken
D．pronunciation
D．put
D．slipcovers
D．taking
D．regret
D．thankful
D．nearly
D．outline
D．still
D．so long as

查看答案

题型：选择题

啮咬肠壁组织，使人慢性失血，甚至产生“异嗜症”的原腔动物为（）。

A、人蛲虫

B、丝虫

C、十二指肠钩虫

D、轮虫

查看答案

题型：选择题

若发送窗口尺寸为4，在发送3号帧并收到2号帧的确认后，发送方还可以发几帧？请给出可发帧的序号。

查看答案

更多题库