问题
单项选择题
受精后第几天,晚期囊胚透明带消失之后开始着床()
A.第8~10天
B.第5~6天
C.第3天
D.第4天
E.第6~7天
答案
参考答案:B
受精后第几天,晚期囊胚透明带消失之后开始着床()
A.第8~10天
B.第5~6天
C.第3天
D.第4天
E.第6~7天
参考答案:B
短文填空。用下面方框中单词或词组的适当形式填如短文空格内,使短文意思正确、通顺(每词限用一次)。(共10小题,每小题1分;计10分)
The teacher said; "Do you notice your 5 ? You are all looking at each other's tea cups and 6 of you even envy (羡慕) the 7 cups of others."Then he went on: "I put the different cups here on purpose! Life is like 8 tea. You all have the same thing in your cups— tea. And yet you can't 9 enjoy it in your envy of another's cup. You forget 10 your own life when you envy someone else's life. So now, taste your own tea! Does it matter from which cup it comes from?" |