___________ the man who lost the purse, Mike had to stay there longer.A．Not findingB．Not foundC．Not

更多内容推荐

• She was disappointed to see the beautiful coat _____ she had bought the day before ______ with a lot
• Do you mind _____ alone at home?A．Jane’s leavingB．Jane having leftC．Jane being leftD．Jane to be lef
• 先化简再求值：a-ba+2b÷a2-b2a2+4ab+4b2-1，其中a=b=1．-数学
• 先化简，再求值：2x-1-1x2-1•x2+2x+1x-1，其中x=3+1．-数学
• 先化简，再求值x2-xyx2÷(xy-yx)，其中x=2-2，y=2．-数学
• 当a=2时，求（4a2-1-2a2+a）÷1a-1的值．-数学
• This machine is very easy______. Anybody can learn to use it in a few minutes. A．operating B．to be o
• 先化简再求值：（1+b+b21-b）÷1+b1-b，其中b=3．-数学
• 先化简，再求值：a2-b2a-b÷(2+a2+b2ab)，其中a=2，b=1．-数学
• 若ab=-2，a+b=1，则1a+1b的值为______．-数学
• ___ an important decision more on emotion than on reason, you will regret it sooner or later.A．Based
• We are looking forward to seeing the new exam system_____ in the near future.A．to be carried outB．ca
• If ____unsolved, the problem of food safety may lead to more serious results.A．leftB．makingC．remaine
• Everyone hates ________ in public.A．to laugh atB．to laughC．being laughedD．being laughed at-高一英语
• 先化简后求值：x2x-2-4x-2，其中x=2-2．-数学
• 先化简，再求值：x-2x-1÷(x+1-3x-1)，其中x=-1．-数学
• 先化简，后求值：(3-xx+2)(x+2)，其中x=-32．-数学
• 先化简，后求值．（1）已知：x=-2，y=-1，求(xx-y-1)÷y2x+y•(x-x2x+y)的值．（2）a=12+3先化简a；再化简a2-2a+1a2-a的值（3）已知x+y=-5，xy=3，求
• 先化简，再求值：(1-1x+3)÷x2-4x2+3x，其中x=6．-数学
• 有一道题：当x=1-3时，求代数式(x2-1)(x+1)x2-x÷(1+x2+12x)的值．小亮同学做题时，没有把“x=1-3”代入，但他的计算结果也是正确的，请解释这是怎么回事．-数学
• Finding her car stolen, ______A．a policeman was asked to helpB．the area was searched thoroughlyC．it
• What is the way George thought of ______ enough money to buy the house?A．to getB．gettingC．having got
• 先化简，再求值：（x+1-15x-1）÷x+4x-1，其中x=52-4．-数学
• 已知a-b=5ab，则2a+3ab-2ba-b-2ab的值是______．-数学
• He set out early after supper_________ be late for the film.A．in order to notB．so not as toC．in not
• 计算：x2+y2x+y-x-y．-数学
• His first book ______ next month is based on a true story of his family. A．publishedB．to be publish
• The policeman kept his eyes________on the screen of the computer to identify the criminal's fo
• (3xx-2-xx+2)×x2-4x．-数学
• （1）化简：45+1220-515（2）先化简，再求值：aa+3-3a-9a2-9，其中a=1．-数学
• (xy-x2)÷x2-2xy+y2xy•x-yx2-数学
• 先化简，再求值：2xx-3+x3-x，其中x=-1．-数学
• 先化简，再求值：(1+x-3x+3)÷2xx2-9，其中x=4．-数学
• _______ never to come back, the boy left his home angrily.A．DeterminedB．DeterminingC．Being determin
• 先化简：(1+3a-2)÷a+1a2-4，然后请你给a选取一个合适的值，再求此时原式的值．-数学
• 化简分式：（2a-1-1a+1）÷1a2-1，并从-2，-1，0，1，2中选一个能使分式有意义的数代入求值．-数学
• 将下面的代数式化简，再选择你喜欢且有意义的数代入求值．（1a-b+1a+b）÷aba2-b2+a-1．-数学
• 计算(1-11-a)(1a2-1)的结果为（）A．-a+1aB．a-1aC．a1-aD．a+11-a-数学
• 先化简，再求值：①2x+1-1x2-1÷xx2-2x+1，其中x=5；②(x-1x-x-2x+1)÷2x2-xx2+2x+1，其中x满足x2-x-1=0．-数学
• ______ from heart disease for years, Andy has to take some medicine with her wherever she goes. A．T
• The tower_____ in the 1800s is the oldest building in this area.A．to be completedB．being completedC
• If the building project_______ by the end of this month is delayed, the construction company will be
• 先化简再求值：3ab-a3b+a2b2a2+2ab+b2÷a2-aba2-b2，其中：a=5+1，b=5-1．-数学
• 先化简再求值：1x-1-1x2-x，其中x=2．-数学
• 先化简再求值：4aa2-4-2a-2，其中a=2-2-数学
• 先化简，再求值：2xx2-4x-1x-2，其中x=-3．-数学
• _____ his electronic dictionary made himself sad.A．LosingB．LostC．Being lostD．To be lost-高二英语
• They are broading the bridge to _____the flow of traffic.A．put offB．speed upC．turn onD．work out-高三英语
• ---Did you enjoy yourself at the party? ---Yes.I appreciated_________.A．to be invitedB．to have invit
• 先化简，再求值：(1a-b+1b+a)÷aba+b，其中a=2+1，b=2．-数学