1.Why not come over at the weekend?The children______seeing you again.A.enjoyed B.will enjoy C.would enjoy ... 全文

2009-06-03 19:16 来自版块 - 

1.To be accepted to study at Yale,applicants must apply directly to the school,college,or program _____the degree will be awarded.A.where ... 全文

2009-05-20 19:50 来自版块 - 

1.By the Mr.Smith arrives at the supermarket , we ____ there for one hour.A.shall stay B.have stayed C.will have staye... 全文

2009-05-17 18:14 来自版块 - 

单倍体育种的原理是什么?单倍体育种的过程是什么?

2009-05-13 19:46 来自版块 - 

1.We'll de free tomorrow,so I suggest ______ to the history museum.A.to visit B.visiting C.we should visit ... 全文

2009-05-04 19:37 来自版块 - 

1.Darwin,______people will naturally associate the theory of evolution,was actually very show in studies as a child.A.whom B.about... 全文

2009-05-03 18:16 来自版块 - 

1.They promised to make efforts to encourage good management, which he stressed_____an important factor in developing their industry.A.it wa... 全文

2009-04-29 20:09 来自版块 - 

1.when____about how to choose a proper car for personal use, he advise me to ask Mr Li..A.consulting B.he consulted C.consulted ... 全文

2009-04-29 19:43 来自版块 - 

1.when____about how to choose a proper car for personal use, he advise me to ask Mr Li. C.consulted 2.______I think of him, I fee... 全文

2009-04-16 19:45 来自版块 - 

1.设定义在R上的函数f(x)满足f(x)*f(2+x)=13,若f(1)=2,则f(99)=?答案:13/2解答过程,谢了

2009-04-10 19:41 来自版块 - 

胃酸刺激小肠属于什么调节(激素,神经,体液)促胰液素刺激胰腺属于什么调节(激素,神经,体液)

2009-03-29 12:51 来自版块 - 

函数f(x)=ax^2+bx+6满足条件f(-1)=f(3),则f(2)的值为( )答案: B.6 解释一下,谢谢

2009-03-29 12:48 来自版块 - 

若定义在R上的函数f(x)满足:对任意x1.x2∈R有f(x1+x2)=f(x1)+f(x2)+1,则下列说法一定正确的是( )A.f(x)为奇函数 B.f(x)为偶函数 C.f(x)+1是奇函数 D.f(x)+1是偶函数

2009-03-28 20:28 来自版块 - 

1.下列关于细胞内元素和化合物的叙述,正确的是( )A.由C.H.O.N.S五种元素组成的某化合物可以作为翻译的直接模板B.精瘦肉细胞中含量最多的化合物是蛋白质C.在人的一生中,细胞中的自由水和结合水的比值逐渐上升D.多糖.蛋白质和核酸是以碳链为骨架的生物大分子2.某食品加工... 全文

2009-03-28 20:14 来自版块 - 

1.在四次独立重复试验中,随机事件A恰好发生一次的概率不大于其恰好发生两次的概率,则事件A在一次试验中发生的概率P的取值范围是( )答案: B.(0,0.4] 2.设抛物线y^2=8x的准线与x轴交与点Q,若过点Q的直线l与抛物线有公共点,则直线l的斜率k的取值范围... 全文

2009-03-21 19:12 来自版块 - 

1.设动点坐标(x,y)满足{(x-y+1)(x+y-4)≥0,x≥3},则x^2+y^2的最小值为( )A.√5 B.√10 C.17/2 D.102.若圆(x-3)^2+(y+... 全文

2009-03-19 12:09 来自版块 - 

1用弹簧秤沿水平方向成37°角斜向上拉着一个物体在水平面上做匀速运动,弹簧秤的示数F1=10/3N,然后用弹簧秤同样斜拉着这个物体在这个水平面上做匀加速直线运动,弹簧秤的示数F2=16/3N,测得物体的加速度为2m/s2.问:(1)这个物体的质量为多大?(2)物体与水平面间的动摩... 全文

2009-03-14 18:39 来自版块 - 

怎样区分右手定则,左手定则,右手螺旋定则;它们分别用在哪些类型的题中?

2009-03-12 19:15 来自版块 - 

1.怎样求基因频率?2.“RNA参与构成细胞膜"这句话错哪了?

2009-03-12 19:11 来自版块 - 


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