Learning a foreign language can help you to understand other cultures. _____, it can be a useful ski

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• I'm certain Davel's told you his business troubles. _____, it's no secret that he owe
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• There was no news; ____, she didn't give up hope. [ ]A. moreoverB. besidesC. but D. nevertheles
• —______, he got a low mark in the exam.— He _______. [ ]A. He is stupid; never studies hardB. Stupid
• The house rent is expensive. I've got about half the space I had at home and I'm paying___
• The old man came to our restaurant so ____ that all of us were familiar with him. [ ]A. frequentlyB.
• The questionnaire takes _____ten to fifteen minutes to complete and can be used along with the asses
• The policemen _____ the murderer. [ ]A. are still searching B. are searching stillC. still search D.
• People who exercise _____ are less likely to feel stress. [ ]A. regularly B. formally C. mostly D. p
• Mother went shopping; _____, I cleaned the house. [ ]A. while B. whenC. however D. meanwhile -高二英语
• These flowers should not be watered too _____, once _____. [ ]A. long; every other day B. often; eve
• — Do you think it's a good idea to make friends with my students? — _____, I do. I think it
• His father told me that he _____ for the United States three days _____.[ ]A. has left; ago B. had l
• The plane got into a situation _____ the pilot couldn't control it. [ ]A. where B. when C. that
• I visited Mr. Johnson during his stay in Shanghai _____ he attended a most important conference ther
• Last night, I watched the film The Shaolin Temple once more, _____, maybe you still remember, Li Lia
• Who can tell me if there is a bookstall around _____I can buy a latest magazine?[ ]A. where B. which
• Many youth went to the Shanghai Science and Technology Museum on Nov. 16, 2009, _____ U.S. President
• 一 When did your cousin begin to show his interest in medicine? 一 It was a Saturday _____ she noticed
• — Where did you find Tom? — It was in the house _____I used to live. [ ]A. what B. which C. where D.
• 计算：[1+4(a-2)-1]÷(1a+2)-1．-数学
• 下列运算正确的是（）A．（-3）0=0B．16=±4C．(-2)-4=116D．2+3=5-数学
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• （1）先化简，再求值：(a2-4a2-4a+4-12-a)÷2a2-2a，其中，a是方程x2+3x+1=0的根．（2）计算：-23×2-2+18+tan45°-(4sin60°+1)0-|2-32|．
• 化简：(1-2)2-20090+12-1-数学
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• 解方程、计算题（1）x2-4x-5=0（配方法）（2）4x2-45x+5=0（公式法）（3）（x-1）（x+2）=4（4）计算：0.25-（cos60°）-2-（3-1）0+tan60°．-数学
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• 用分数表示5-3是______．-数学
• 计算：(3+1)0+813-94．-数学
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• 计算：|2-5|+(π-3)0-(12)-2÷(-12012)．-数学
• 计算（x-1+y-1）÷（x-1-y-1）=______．-数学
• 已知(12)n=16，则n等于（）A．-2B．-4C．-3D．-5-数学
• 计算：（-2xy-2）4=______．-数学
• 在①（-1）0=1；②（-1）3=-1；③3a-2=13a2；④（-x）5÷（-x）3=-x2中，正确的式子有（）A．①②B．②③C．①②③D．①②③④-数学
• 计算（10）2+（110）0+（110）-2的结果为（）A．101B．100C．1D．201-数学
• π0+3-2=______．-数学
• 下列计算正确的有（）①（-0.1）-2=100，②-10-3=11000，③15-2=125，④2a-3=12a3．A．1个B．2个C．3个D．4个-数学
• 计算：（1）8×(2-12)（2）(-3)0-27+|1-2|+13+2．-数学
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• 计算（1）2x+1-1x-1（2）0.25×（-2）-2÷（16）-1-（π-3）0（3）a-1a+2•a2-4a2-2a+1÷1a2-1．-数学
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• 计算4-2的结果是（）A．-8B．-18C．-116D．116-数学
• 求下列各数的平方根：81：______；289：______；0：______；214：______；2.56：______；10-2：______．-数学
• 计算：（1）(-9)0+3-8-|-3-27|+(12)-2（2）（-2xy）2-3x2y3÷（-x3y4）（3）（2b+2）2-（2b+2）（2b-2）（4）0.1252008×82009．-数学
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