下列算式，计算正确的有①10-3=0.0001；②（0.0001）0=1；③3a-2=13a2；④（-x）3÷（-x）5=-x-2．A．1个B．2个C．3个D．4个-数学

更多内容推荐

• Anyone, whether he is an official or a bus driver, should berespected.A．especiallyB．equallyC．natural
• 下列计算正确的是（）A．（-ab）4÷（-ab）2=a2b2B．（-3ab）2=-6a2b2C．（-1）-1=1D．5a2+2a2=7a4-数学
• Though he was____ trouble after he was wounded, he managed to escape____ caught by the enemy.A．out o
• “Perhaps we need to send for Dr. Smith to see what we can do about it,” Father suggested ________ to
• I heard the alarm ringing all the morning. ____ something very urgent happened.A．ReallyB．ObviouslyC．
• 计算：（-2010）0+|-1|=______．-数学
• The test not only helps make our _____ acquired knowledge permanent, but also enables us to find out
• My father is always strict _______ me, so he was very angry _______ my fault on this matter.A．with;
• Professor Smith will come here to give a speech. All the preparations must be _____ before 5 o’clock
• The shop will be closed for repairs ________ further notice.A．withB．untilC．forD．at-高一英语
• He came running along and climbed ____ the train just as it was about to leave. A．aboard B．board C．a
• –This summer is very hot. --Yes, but it’s not __________ as hot as last summer.A．nearlyB．almostC．nea
• （-2）2×2-1-数学
• — Have the arrangements for the concert next Saturday been all ______?— Not yet.We haven't foun
• To understand the grammar of the sentence, you must break it ________ into parts.[ ]A．downB．upC．offD
• 下列等式成立的是（）A．（-3）-2=-9B．（-3）-2=19C．a-2×b-2=a2×b2D．a2-b2b-a=a+b-数学
• Nothing is more important than health, so it is unwise to build up our business ________ our health.
• A series of ancient Chinese coins are ________ in an exhibition held in Nanjing, where a variety of
• Look! Some workers are busy building a monument, one______the national heroA．in memory ofB．in favor
• My boss hates interruptions,when he is trying to work.A．occasionallyB．generallyC．speciallyD．especial
• When he gets married, he lived ___________ his parents. [ ]A. apart fromB. far awayC. apart awayD. a
• The world seemed as if it was ___________. In a flash everything was destroyed.A．at an endB．in the e
• 下列运算正确的是（）A．-|-3|=3B．（13）-1=-3C．9=±3D．3-27=-3-数学
• The police are ______ to conclude that the cause of fire was a cigarette end.A．probableB．possibleC．m
• His wife is finding fault with him, which makes him very angry.A．constantlyB．regularlyC．previouslyD．
• 下列计算正确的是（）A．（-2）-1=2B．（-2）0=-1C．（-2）2=-4D．（-2）3=-8-数学
• n正整数，且（-2）-n=-2-n则n是[]A.偶数B.奇数C.正偶数D.负奇数-八年级数学
• People who are ______ modern city life may think it is rather dull to live in the countryside.A．in
• ________ their son away to college, the old couple got more room in the house．[ ]A．As B．For C．Throug
• It was raining heavily. Little Tom felt cold, so he stood ______ to his mother.A．closeB．closelyC．clo
• This also keeps the air，soil，water crops________ chemicals.A．out ofB．out fromC．free ofD．rid of-高二英语
• 若a=（-32）-2，b=（-1）-1，c=（-π2）0，则a，b，c的大小关系是（）A．a＞b＞cB．a＞c＞bC．c＞a＞bD．c＞b＞a-数学
• 在下列计算中，正确的是（）A．（ab2）3=ab6B．（3xy）3=9x3y3C．（-2a2）2=-4a4D．（-2）-2=14-数学
• ---You seem to be burning yourself out with so much work! --- ___________.I’m dying for a thorough r
• 将三个数：(12)-1，2，（3-π）0按从小到大的顺序排列，结果正确的是（）A．（3-π）0＜2＜（12）-1B．（12）-1＜2＜（3-π）0C．2＜（3-π）0＜（12）-1D．（3-π）0＜（
• A murderer has escaped from prison, so a nationwide search for him is ______.A．on the wayB．in a way
• The UK government claims that the economy is improving, but this survey suggests.A．otherwiseB．theref
• We have done half the work so far. _____, we’ll have finished it by December. A．UnluckilyB．Fortunate
• I’ll raise both hands _____ banning smoking inside the school yard.A．in favour ofB．in memory ofC．in
• 计算：0-1=______．-数学
• So hard did he work that he __________made himself ill for a whole week. [ ]A. merelyB. annually C.
• 计算：8•cos45°-sin30°-（-2010）0-数学
• Nancy reminded me of what I should ________ have forgotten.A．thereforeB．insteadC．otherwiseD．besides-
• （4×6-48÷2）0=（）A．0B．1C．-12D．无意义-数学
• Two years ago, three scientists traveled to the Antarctica to explore a secret world hidden _______
• It was difficult being in a foreign country, ________ if you don’t speak the language.A．extremelyB．n
• I like to keep fit, so I go swimming ____ I can.[ ]A. as soon as B. as fast as C. as often as D. as
• American English is more or less different ____British English ____ pronunciation and spelling. A．fr
• 计算：5-1的值为（）A．5B．-5C．15D．-15-数学
• 计算：（4﹣2）﹣2﹣（﹣1）0．-七年级数学