搜索
首页
搜索
首页
首页
/
19.下列细胞中既有中心体又有细胞壁的是( ) A.肝细胞 B.
19.下列细胞中既有中心体又有细胞壁的是( ) A.肝细胞 B.
19.
下列细胞中既有中心体又有细胞壁的是(
)
A.
肝细胞
B.
衣藻
C.
蓝藻
D.
洋葱根尖细胞
答案
B
相关题目
(本小题满分13分) 已知圆C:过点A(3,1),且过点P(4,4
(本小题满分13分) 已知圆C:过点A(3,1),且过点P(4,4)的直线PF与圆C相切并和x轴的负半轴相交于点F. (1)求切线PF的方程; (2)若抛物线E的
阅读下面的文字,完成(1)—(4)题。 选 择 武献卫
阅读下面的文字,完成(1)—(4)题。 选 择 武献卫 海啸来的毫无征兆。 监狱长海尔默面对突如其来的灾难显得惊慌失措,他
如图①,在平面直角坐标系中,二次函数的图象与坐标轴交
如图①,在平面直角坐标系中,二次函数的图象与坐标轴交于,,三点,其中点的坐标为,点的坐标为,连接,.动点从点出发,在线段上以每秒1个单
台湾旅行团要来大陆祭拜中华民族的人文始祖,他们该去: A
台湾旅行团要来大陆祭拜中华民族的人文始祖,他们该去: A.黄帝陵 B.大禹陵 C.秦始皇陵 D.中山陵
An ecosystem consists of the living and nonliving things in an area ______ in
An ecosystem consists of the living and nonliving things in an area ______ interact with one another. A. that B. where C. who D. what
I got caught in the rain and my suit _______. A.has ruined B.had ruine
I got caught in the rain and my suit _______. A.has ruined B.had ruined C.has been ruined D.had been ruined
The girl is going to study abroad next month and when he was young.
The girl is going to study abroad next month and when he was young. A. so her father was B. so her father did C. so was her father D. so did her father
It was in the small house ______ was built with stones by his father ______ he s
It was in the small house ______ was built with stones by his father ______ he spent his childhood. A. which, that B. that, which C. which, which
最新题目
单项选择______ of the year,we often make a promise.A.At the beginning
﹣的倒数是 ,的相反数是 .
下列关于细胞与生命活动关系的描述正确的是( ) A.引起SARS
下表是元素周期表的一部分, 针对表中的①~⑨种元素,填写
下图是章老师早晨出门散步时,离家的距离(y)与时间(x)
下图是胰腺组织局部结构模式图,请据图回答。(1) A 液为
如图,AB=AC,AD=AE,∠BAC=∠DAE.求证:BE=CD.
下列事实与氢键有关的是( ) A.水结成冰体积膨胀,密
A spirit of a
规范的操作是实验成功的基本保证。下面是有些同学的实验
(2012·莆田一模)汤因比说:“人们将记住这个时代,这主要不
(本题共8分)实验对认识和研究物质性质有重要作用,回答
家鸽和蝗虫都是我们熟悉的动物,有关说法不正确的是(
弱酸HY溶液的pH=3.0,将其与等体积水混合后所得溶液的pH范围
The railway Qinghai to Tibet is the longest plateau (高原) railway in the wor
下列叙述中,正确的是 A.在氧化还原反应中,肯定有一种元
读图“五种外力作用相互关系示意图”,回答问题。 沙尘暴
据黑龙江省人民政府网消息,黑龙江省从2010年7月1日起调整
在测一节干电池的电动势和内阻的实验中,备有下列器材:
甲物质是初中化学中的常见物质,请根据下列叙述回答问题