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参考答案：
举一反三
【单选题】What is the main idea of the last paragraph?
A.
Modern discoveries are the same as Darwin's.
B.
Fossils are also very important in modern research.
C.
Modern technology proves that Darwin was not quite fight.
D.
Modern research is more advanced than Darwin's in many ways.
查看完整题目与答案
【简答题】阅读下列解方程组的方法，然后回答问题． 解方程组 19x+18y=17 ① 17x+16y=15 ② 由①-②得2x+2y=2  即x+y=1 ③×16得16x+16y=16   ④ ②-④得x=-1，从而可得y=2 ∴原方程组的解是 x=-1 y=2 ． （1）请你仿上面的解法解方程组 2012x+2011y=2010 2010x+2009y=2008 ； （2）请大胆猜测关于x、y的方程组 (...
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【简答题】直接写出下面各题的得数． 1 5 + 1 6 = 1 5 - 1 6 = 1 6 + 1 7 = 1 6 - 1 7 = 1 7 + 1 8 = 1 7 - 1 8 = 1 8 + 1 9 = 1 8 - 1 9 =
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【简答题】How many inventions and discoveries made by man are mentioned in the passage?
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【简答题】如图，已知∠A=∠B，AA 1 ，BB 1 ，PP 1 均垂直于A 1 B 1 ，AA 1 =17，PP 1 =16，BB 1 =20，A 1 B 1 =12  则AP+PB=（      ）。
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【单选题】Many discoveries are made ____.
A.
by accident
B.
in public
C.
by mistake
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【简答题】直接写出得数． 1- 1 2 = 3.2+1.78= 3 5 - 1 6 = 1 3 + 1 2 = 1 6 + 1 7 + 1 5 = 0.48÷120= 1.01×99= 1 7 + 6 7 = 2 3 + 1 6 = 1 6 + 1 2 - 1 6 =
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【单选题】把 1 6 、 1 9 、 1 8 、 1 7 按从大到小的顺序排列是（　　）
A.
1 6 ＞ 1 9 ＞ 1 7 ＞ 1 8
B.
1 8 ＞ 1 6 ＞ 1 7 ＞ 1 9
C.
1 6 ＞ 1 7 ＞ 1 8 ＞ 1 9
D.
1 9 ＞ 1 7 ＞ 1 8 ＞ 1 6
查看完整题目与答案
【单选题】What is the main idea of the last paragraph?
A.
Modern discoveries are the same as Darwin%.
B.
Fossils are also very important in modern research.
C.
Modern technology proves that Darwin was not quite right.
D.
Modern research is more advanced than Darwin's in many ways.
查看完整题目与答案
【单选题】Many important scientific discoveries are in fact ______ones as they were made by chance.
A.
relative
B.
temporary
C.
subordinate
D.
accidental
查看完整题目与答案
相关题目：
【单选题】What is the main idea of the last paragraph?
A.
Modern discoveries are the same as Darwin's.
B.
Fossils are also very important in modern research.
C.
Modern technology proves that Darwin was not quite fight.
D.
Modern research is more advanced than Darwin's in many ways.
查看完整题目与答案
【简答题】阅读下列解方程组的方法，然后回答问题． 解方程组 19x+18y=17 ① 17x+16y=15 ② 由①-②得2x+2y=2  即x+y=1 ③×16得16x+16y=16   ④ ②-④得x=-1，从而可得y=2 ∴原方程组的解是 x=-1 y=2 ． （1）请你仿上面的解法解方程组 2012x+2011y=2010 2010x+2009y=2008 ； （2）请大胆猜测关于x、y的方程组 (...
查看完整题目与答案
【简答题】直接写出下面各题的得数． 1 5 + 1 6 = 1 5 - 1 6 = 1 6 + 1 7 = 1 6 - 1 7 = 1 7 + 1 8 = 1 7 - 1 8 = 1 8 + 1 9 = 1 8 - 1 9 =
查看完整题目与答案
【简答题】How many inventions and discoveries made by man are mentioned in the passage?
查看完整题目与答案
【简答题】如图，已知∠A=∠B，AA 1 ，BB 1 ，PP 1 均垂直于A 1 B 1 ，AA 1 =17，PP 1 =16，BB 1 =20，A 1 B 1 =12  则AP+PB=（      ）。
查看完整题目与答案
【单选题】Many discoveries are made ____.
A.
by accident
B.
in public
C.
by mistake
查看完整题目与答案
【简答题】直接写出得数． 1- 1 2 = 3.2+1.78= 3 5 - 1 6 = 1 3 + 1 2 = 1 6 + 1 7 + 1 5 = 0.48÷120= 1.01×99= 1 7 + 6 7 = 2 3 + 1 6 = 1 6 + 1 2 - 1 6 =
查看完整题目与答案
【单选题】把 1 6 、 1 9 、 1 8 、 1 7 按从大到小的顺序排列是（　　）
A.
1 6 ＞ 1 9 ＞ 1 7 ＞ 1 8
B.
1 8 ＞ 1 6 ＞ 1 7 ＞ 1 9
C.
1 6 ＞ 1 7 ＞ 1 8 ＞ 1 9
D.
1 9 ＞ 1 7 ＞ 1 8 ＞ 1 6
查看完整题目与答案
【单选题】What is the main idea of the last paragraph?
A.
Modern discoveries are the same as Darwin%.
B.
Fossils are also very important in modern research.
C.
Modern technology proves that Darwin was not quite right.
D.
Modern research is more advanced than Darwin's in many ways.
查看完整题目与答案
【单选题】Many important scientific discoveries are in fact ______ones as they were made by chance.
A.
relative
B.
temporary
C.
subordinate
D.
accidental
查看完整题目与答案
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