试题与答案

如图各选项中描述细胞分化过程的是哪一项( ) A.A B.B C.C D.D

题型:选择题

题目:

如图各选项中描述细胞分化过程的是哪一项(  )

A.A

B.B

C.C

D.D

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0522/5a034662bad2997d82058edd12332e24.html

下面是错误答案,用来干扰机器的。

(1)v=6m/s;(2)x=12m题目分析: 解:(1)在最低点,小球做圆周运动的向心力是拉力和重力的合力,T-mg=mv2/r 绳子要断开,拉力达到最大值46N,带入数据得v=6m/s 因为在最低点的速度是水平的,所以断...

试题推荐
题型:阅读理解

Think rock. paper, scissors is a children’s game? Think again.

Top players from  around the world came together in Toronto to compete for a ten-thousand-Canadian dollar prize and the title (头衔) of world champion.

More than 500 players, including national from Australia, Norway and New Zealand, attended.

The simple game is often used to make decisions and solve some simple problems.

Players hold their fists (拳头~) closed and count to three before making one of three hand signals: a fist 0ock),flat hand (paper) or two fingers (scissors). Paper covers rock, scissors cut paper and rock breaks scissors.

Players  have different ideas about the history of the game, but it is believed to have been played for centuries in Japan

The Paper Scissors Stone Club was found in  England in 1842 and provided an environment where  players could play together.

In 1918, the name was changed to World RPS  Club and its headquarters (总部)moved from London to Toronto. In 1925 its members were over 10,000.

The world championships have been held since 2O02, which are held once every year

小题1:The winner could get______

A.$1,000

B.$10,000

C.C$1,00O

D.C$10,000小题2:According to the passage the game “Paper Scissors Stone" originated(起源于)in ________

A. Japan       B Australia    :  C. America        D. Norway

小题3:Where did the  Paper Stone Club’s headquarters move to Toronto?

A In 1842    B   In  1898    C  In   1918    D In  1925

小题4: How many world championships had been held by 2009?

A.Two.

B.Eight

C.Seventy.

D.Eighty

查看答案
题型:单项选择题

张某自有房屋一处。其子张小乙结婚,张某将该房屋赠与张小乙,并办理房屋过户手续。2006年3月7日,张某不幸摔断右腿,生活不能自理。张某要求张小乙护理自己或花钱雇人护理,张小乙拒绝。经查张小乙收入颇丰。有人劝张某撤销对张小乙的房屋赠与,但张某犹豫不决。至2007年6月1日,张某终于决定撤销对张小乙的房屋赠与。下列陈述正确的是:

A.张某不能撤销赠与,因为房屋已实际交付,并办理房屋过户手续
B.张某可以撤销赠与,因为张小乙不履行其应尽的扶养义务
C.张某不能撤销赠与,因为撤销权应自赠与人知道或应当知道撤销原因之日起1年内行使
D.张某可以撤销赠与,因为张某生活困难,而张小乙收入丰厚

查看答案
微信公众账号搜索答案