问题
单项选择题
角膜屈光力占眼球总屈光力的()
A．50%
B．60%
C．70%
D．80%
E．90%
答案
参考答案：C
解析：角膜屈光力约+43D，占眼球屈光力的 70%
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角膜屈光力占眼球总屈光力的()
A．50%
B．60%
C．70%
D．80%
E．90%
参考答案：C
解析：角膜屈光力约+43D，占眼球屈光力的 70%
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| Almost everyone likes apple pies in the USA. An apple pie is easy to make. 1 You just need apples, flour, sugar, butter and spices. 2 Then mix them with spices and put them in a pie tin. 3 Add the mixture to the apple pieces and bake the pie for about 45 minutes. 4 There are many different ways to make apple pies. Some families have their own secret ways and don't tell other people about them. 5 but the apple pie perhaps is the dessert that everyone loves best.
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