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问题 单项选择题

属于器官特异性自身免疫病的是

A．SLE

B．全身性硬皮病

C．多发性肌炎

D．类风湿性关节炎

E．甲状腺功能亢进症(Graves病)

答案

参考答案：E

解答题

把24分米长的铁丝折成一个最大的正方形，它的面积是______平方分米，如果把这根铁丝折成一个最大的正方体，它的体积是______立方分米．
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选择题
—It is _______ to work out this problem. You needn't go to the teacher. I can help you.
—Thanks, It's very kind of you.

A. enough easy
B. easily enough
C. easy enough
D. very easily
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