下列计算，结果正确的个数（）（1）（13）-1=-3；（2）2-3=-8；（3）（-34）-2=169；（4）（π-3.14）0=1A．1个B．2个C．3个D．4个-数学

更多内容推荐

• 计算：（1）（10-9.6）0-（-2）-2-（-1）2012（2）（-2x）3-3xy2（3）（-0.125）999×81000（4）（a+4）（a-4）-（a-1）2．-数学
• 计算：（1）(42-36)÷22；（2）12+27-(23-1)0+|-3|．-数学
• Your composition is well-written ______ a minor spelling mistake.A．besideB．besidesC．except thatD．ex
• 计算：20110+(13)-1=______．-数学
• Success means working hard, but working hard doesn’t mean success.A．certainlyB．necessarilyC．probably
• He had to take the medicine three times a day, so as to be _____ the pain in the leg. A．far fromB．a
• All the classmates were _______my suggestion that we read English every day.A．in case ofB．in favor o
• Trains with the first letter D or Z can run __________ a speed of more than 200 kilometers an hour w
• 计算(2-3)-1-(12+1)+(3+2)0．-数学
• 计算：(112)-1+(3+1)(3-2)-(46-18)÷42．-数学
• 计算：(12)-2-6sin30°+(-2)0+|2-8|．-数学
• （-1615）-2=______；（x-12）2=______．-数学
• His parents, , didn’t look after him very well—the elbows of his jacket and his boots were badly wor
• — Did you remember to give Mary the money you owed her?— Yes, I gave it to her ________ I saw her.A．
• Running a company is not _______ a matter of hiring people — they also need to be trained.A．simplyB．
• Led by the Party, ___ we fight firmly with one heart and one mind, depending upon science, we will s
• He rarely switches on to hear any of the classical music he claims to be so keen ____. A．toB．onC．by
• There was __ traffic that nobody could move.A．so manyB．such greatC．so muchD．such many-英语
• 计算：（1）(x2-y)5•(-y2x)•(1xy)7（2）(m4n-4m-1n)-3÷(m-2n2mn-1)5．-数学
• People try to avoid public transportation delays by using their own cars, and this _________ creates
• 计算：27-|1-tan60°|+(π-3.14)0-(12)-1．-数学
• ba-b+ab-a+(π-3)0=______．-数学
• The ________ fact is that some European countries are heavily in debt, ________China’s economy is ge
• By making friends with the native speakers, one can ________ a lot of their language.A．pick upB．take
• It’s always difficult being in a foreign country, ___________if you can’t speak the language.A．extre
• When drinking______ someone’s health，you raise your glasses，but the glasses should not touch．A．toB．f
• Bicycling is good exercise, ________, it does not pollute the air. [ ]A. neverthelessB. besidesC. ot
• Right now you may not know how relevant English learning is _________ your future.A．toB．towardsC．inD
• （1）计算：|-2|-116+(-2)-2-(3-2)0．（2）解方程：x+5x2-x-3x=6x-1．-数学
• 计算：12+(12)-1-|3-2|-(π-3)0．-数学
• He argued ______ smoking, and insisted that it was ______argument that smoking was harmful to health
• 计算：|-1|+3-2-20070．-数学
• ------ Who knows the meaning of the saying “ Time __________ will tell.” ------ __________ Tom knows
• The meaning of a word can be guessed according to the context, so you will not __________ refer to a
• 计算：a3b2÷（a-1b2）=______．-数学
• 计算：23-1+12-（3+1）0．-数学
• Tom’s teacher and classmates all knew Tom would not do well, but he succeeded _________ their expec
• The crowds had all gone home and the street was quiet ________.[ ]A. any moreB. no longerC. any long
• 计算（1）|-2|+(13)-1×(π-2)0-9+(-1)2（2）a-2a+3÷a2-4a2+6a+9．-数学
• ---I can only spare ten minutes for you . Could you speak your plan ____? ---OK. All right. A．in gen
• （1）化简1x÷1x2+x；（2）计算：2-(π-1)0-2×(12)+(14)-1-数学
• （1）计算：(12)-2-23×0.125+20040+|-1|（2）化简：m22-m+3-mm-2-m+12-m-数学
• One of the customs officers, who was watching the arrivals very ________, saw feathers ________ from
• —I’m driving to Beijing after breakfast. —Take care,with all this fog.A．especiallyB．mainlyC．extreme
• They have a small apartment______ the third floor of a _____ apartment block.A．in ; five- storeyB．o
• —Will you accept his proposal?—Me?____．He is the last man in the world I want to marry．A．not likelyB
• Millions of people have been thrown ________ due to the global economic depression.A．out of placeB．o
• According to the embarrassing situation here, I’m afraid that your arrival at present is not quiet _
• 计算：（12）-1-2sin45°+|1-2|．-数学
• There are several people who have called _______ the advertisement we placed in yesterday’s newspape