问题:若点M(1+a,2b-1)在第三象限内,则点N(a-1,1-2b)点在第 ____象限;
查看答案
问题:请你根据《7-9级语文课程标准》推荐的课外阅读名著,在下面横线上填上相应的内容。(4分)读《 》(名著名称),在这部书中,我印象最深刻的人物是____________________, 我喜欢这个人物的理由是:________________________________________________________ ______________________________________________________________________________.
问题:对如何防止你家的刀、剪等钢铁制品和铁制农具等生锈,提出两种以上的方案,比较方案的优缺点,并在家里实施你的方案。
问题:分类法是化学学习和研究的重要方法之一。下列分类正确的是【】A.非金属元素:Mg、F、SiB.盐:纯碱、小苏打、硫酸铝C.混合物:空气、石油、冰水共存物D.合成材料:塑料、羊毛、合金
问题:30. The sweater isA.bigB.greenC.¥30D.A,B and C
问题:直线y=2x-3向下平移4个单位可得直线y=______________,再向左平移2个单位可得直线y=_______________
问题:硒元素具有抗衰老、抑制癌细胞生长的功能。在硒的一种化合物硒酸钠Na2SeO4中,硒元素的化合价为 。
问题:李丽从家到学校的路程为s,无风时她以平均a米/秒的速度骑车,便能按时到达,当风速为b米/秒时,她若顶风按时到校,请用代数式表示她必须提前 出发.
问题:2009年7月22日,重庆市民领略了500年一遇的日全食天象奇观,如图4所示,每一个观察者都被这大自然的奇观速所吸引和震撼,其实日食的产生是由于光沿 传播形成的。我们眼球内的晶状体相当于 镜,能会聚光线。
问题:点(-3,2),(a,a+1)在函数y=kx-1的图像上,则k= ,a=
问题:BWhen your parents quarrel.what do you do? It may be terrible for you. You feel sad and angry. But that doesn't help. Here are some tips(建议) for you. Maybe they can help you.1.Know why they quarrel. Your father and mother have their own ideas. They don-t agree on something. So they quarrel.even fight. But it doesn- t mean that they don't Iove each other.They will make up(和解)soon. Don't worry.2.If both of your parents ask you who is right.never say one of them is wrong. Either of them thinks he or she is right.so even if you have an idea.be clever! Don't tell the truth.3.If they begin to break glasses.chairs.or fight witb each other.you should stay far. When They are angry. they think little about you. You should be careful not to get hurt.4.If you need help.call your grandparents.uncles.or other relatives. You can also call your neighbors or teachersLeachers.5.Look for or a friend. :tell him your feelings. Don't keep all to yourself.6.After your parents make up.tell them how sad and angry you felt. They'll probably not quarrel or fight again.7.lf your parents often quarrel.leave them alone! You can do your own things.such as do your homework or read a book.Everyone wants a happy family without quarreling or fighting. But sometimes.we must face something.and do something to change it.( )26. How many tips does the writer give in the passage?A; Seven.B. Six.C. Eight.D. Nine.
问题:已知m是整数,且一次函数y=(m+4)x+m+2的图象不过第二象限,则m= ;
问题:计算:(-2)100+(-2)101的是()A 2100B-1C-2D -2100
问题:( )A.doB.doingC.to doD.did
问题:甲、乙两个蓄水池蓄满水后的水量都为120m3,已知甲池有水48m3,乙池装满了水,现甲开始进水,每小时进水8 m3,同时,乙池每小时放水10 m3.(1)甲池内的水量y甲(m3)与进水时间t(h)之间的函数关系式是什么?乙池内的水量y乙(m3)与放水时间t(h)之间的函数关系式是什么?(2)经过多少时间,两个池内的水一样多?
问题:已知y与4x-1成正比例,且当x=3时,y=6,写出y与x的函数关系式 ____。
问题:The red sweater is$25.(就划线部分提问)________ ________ ________ the red sweater?
问题:老师给出一个函数,甲,乙各指出了这个函数的一个性质:甲:第一,三象限有它的图象;乙:在每个象限内,y随x的增大而减小.请你写一个满足上述性质的函数___________
问题:已知一次函数的图象经过点A(2,1),B(-1,-3)(1)求此一次函数的解析式;(2)求此一次函数的图象与x轴、y轴的交点坐标;(3)求此一次函数的图象与两坐标轴所围成的三角形面积。
问题:BBreakfast is very important. It- s one of the most important meals of the day. To build strong bodies and keep healthy, everyone should always eat a good breakfast. Eating the right food is needed for good health. We may have eggs, bread, milk, etc.for our breakfast.Many fathers and mothers don-t get their children to eat breakfast because they don't have breakfast themselves. It-s bad for their health.Without breakfast children may not grow as fast as they should and may not study and play as well in school in the morning as they could. They can be often ill, and when they're ill, it may take them longer to be in good health again than it takes children with good health habits.Without food the body will stop working. Nobody will live without food.( )26.If we eat a good breakfast,________A. we’ll be happy in the morningB. we’ll make our bodies strong and keep healthyC. we’ll eat less for lunchD. we’ll pass the exam