下列估测值最接近事实的是（ ）
A．著名歌唱家宋祖英双脚站立在水平舞台上，对舞台的压强约为104Pa
B．现行人民币一百元的长度约10cm
C．一支粉笔的质量约为200g
D．人的正常体温略高于38℃
A、宋祖英的体重大约是500N，双脚的面积大约是500cm2，则宋祖英双脚站立时对舞台的压强大约是：
P=
=F S
=104Pa，故A正确；500N 500×10-4m2
B、现行人民币一百元的长度约为16cm，故B错；
C、一支粉笔的质量约为10g，故C错；
D、人的正常体温37℃，故D错．
故选A．
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| Tina and Tara are twin sisters. They look 1 , but they also have some differences. Mr. Black is their old grandfather. One day, he came to see his two granddaughters 2 two gifts. When he came into the house he saw Tina and 3 her one gift. After a while, when he got into the garden he saw 4 granddaughter-"Tara". In fact, that was Tina. When he gave the other gift to her, she said, "you have given me one." "No, I gave a gift to your 5 -Tina." "Oh, my grandpa, I am Tina." Just then, Tara came into the garden, too. "Now, grandpa, can you tell me the differences 6 us?" "'No, I can't. Can you 7 me?" "Yes, look, Tara is a little taller 8 me. Her hair is longer and curlier, then 9 . Now grandpa, can you see?" "Yes, now I can tell you 10 Tara. Tara, here is the gift for you." "Thank you for your gift, grandpa." With the words, they all laughed happily. | ||||
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