1.Would you please_________the two pieces of wood together so that it is long enough?A.destroyB.joinC.replaceD.exchange2.首字母填空:The day of the test a______at last.Jane couldn't answer many of the questions in the exam.3.已知直线y=(k-3)
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1.Would you please_________the two pieces of wood together so that it is long enough?
A.destroy
B.join
C.replace
D.exchange
2.首字母填空:
The day of the test a______at last.Jane couldn't answer many of the questions in the exam.
3.已知直线y=(k-3)x+5-2k与直线y=4x-3没有交点,且经过点(2,a).求a的值.
4.见图.
.
a=-1 因为没有交点 所以两直线平行 k-3=4 k=7 所以直线为y=4x-9 当x=2时 y=-1即a=-1
你好:(很是抱歉,我自己画的数学第二题的图没有办法复制到这里,请原谅英语1.C. 首先第二个空肯定是surprised,排除A、D。with surprised没这个
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() milk would you like?