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【单选题】
What a great artist! It seemed only a couple of minutes ____ he had finished this wonderful painting!
A.
until
B.
when
C.
after
D.
before
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如何制作自己的在线小题库
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刷刷题刷刷变学霸
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【单选题】植物茎的结构中,筛管的作用是
A.
输送水分
B.
输送有机物
C.
输送无机盐
D.
输送水分和有机物
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【单选题】你喜爱生物吗?地球由于生物的存在而美丽。下面是在某小池塘中发现的物体,请选出全部是生物的一项①水 ②泥沙 ③小鱼 ④水草 ⑤青蛙 ⑥石块 ⑦微生物 ⑧贝壳 [ ]
A.
①②⑥⑧
B.
①③④⑦
C.
③④⑤⑧
D.
③④⑤⑦
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【简答题】一般情况下,生态系统中各种生物的__________和所占的_________是相对稳定的,这说明生态系统具有一定的________能力。
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【简答题】阅读理解。 The old man walked with a cane (拐杖) slowly into the restaurant. His poor jacket, patched (打补丁的) trousers, and worn-out shoes made him stand out from the usual Saturday morning breakfast crowd. U...
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【简答题】Which is sillier: denying we ever went to the moon or trying to convince the true non-believers?Once upon a time—July 20, 1969, to be specific – two men got out of their little spaceship and wandered ...
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【简答题】TV talk shows dominate daytime television. And anyone who watches them regularly knows that each one is different in style. But no two shows are more opposite in content, while at the same time standi...
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【简答题】.第三节书面表达(满分 30分)假如你是李华,18岁,现在是衡水中学高三的一名学生。你在网上看到大学计划在河北招收2名高三毕业生的消息。你对此非常感兴趣,并有意报考该校。请你给大学校长写一封自荐信。信的内容应包括:1. 姓名、年龄及就读学校;2. 品学兼优;爱好英语、篮球和电脑;3. 曾荣获2009年河北省英语演讲比赛一等奖;4. 希望能就读于大学计算机科学系。注意:1.词数100左右...
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【简答题】科学探究过程中作出的假设可以任意猜想。 ( )
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【单选题】下列生物之间属与合作关系的是( )
A.
草原中的兔和狼
B.
生活在豆科植物上的菟丝子
C.
稻田中的水稻和稗草
D.
蜜蜂采蜜
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【简答题】There is a new type of small advertisement becoming increasingly common in newspaper classified columns.It is sometimes placed among “situations vacant”, although it does not offer anyone a job, and s...
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