皮皮学，免费搜题
登录
搜题
【单选题】
Which of the following about c ell c ycle is NOT true? ( )A.
Cytokinesis of animal cells is mediated by a contractile ring of actin and myosin II filaments.
B.
According to the characteristics of cell division, c ell groups c an be divided into three types , such as Cycling cells , Terminally Differentiated cells and Quiescent cell.
C.
Meiosis II is similar to m eiosis I.
D.
We can get the synchronization of the cells by b locking DNA synthesis by TdR .
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】A company purchases a machine for $120,000 on 1 October 20X9. The estimated useful life of the machine is four years, with s residual value of $4,000. The company’s policy is straight-line method and ...
A.
$7,250
B.
$7,500
C.
$29,000
D.
$30,000
【简答题】过点P（1，-1），且与直线l：x-y+1=0垂直的直线方程是______．
【简答题】已知直线l 1 ：3x﹣y﹣1=0，l 2 ：x+y﹣3=0，求： （1）直线l 1 与l 2 的交点P的坐标； （2）过点P且与l 1 垂直的直线方程．
【简答题】超重部分怎么收费? What ’ s the charge for the ?
【单选题】The accountant at S is preparing quarterly accounts for Quarter 3. In Quarter 2, he had accrued $1,600 for gas and this balance was carried forward to Quarter 3. In Quarter 3, a gas bill of $2,700 was...
A.
$1,900
B.
$2,400
C.
$2,700
D.
$3,500
【简答题】已知直线l过点P（2，﹣1），且与直线2x+3y﹣4=0平行，则直线l的方程为（ ）
【简答题】已知直线x-y+2=0，点P的坐标为（1，-1），求： （1）点P到直线l的距离； （2）过点P与直线l平行的直线l 1 的方程； （3）过点P与直线l垂直的直线l 2 的方程．
【简答题】已知直线l 1 ：3x+4y-5=0与直线l 2 ：2x-3y+8=0交于点P． （1）求点P的坐标； （2）求过点P且与l 1 垂直的直线l的方程．
相关题目：