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问题 解答题
计算：
①4
3
-
20
+
5
-
27
；        ②(
a
+
2
)(
a
-
2
)-
a2b
•
1
b
．
答案

①原式=4

3
-2
5
+
5
-3
3
=
3
-
5
；

②原式=a-2-a

b
×
b
b
=a-2-a=-2．

单项选择题

火邪的性质和致病特点是( )

A．为阳邪，具有升发向上的特性

B．为阳邪，多挟湿致病

C．为阳邪，其性轻扬，可致腠理开泄

D．为阳邪，性炎上

E．为阳邪，性炎热
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单项选择题

A 35-year-old female client who complains of weight gain, facial hair, absent menstruation, frequent bruising, and acne is diagnosed with Cushing's syndrome. Cushing's syndrome is most likely caused by which of the following

A．An ectopic corticotropin-secreting tumor.

B．Adrenal carcinoma.

C．A corticotropin-secreting pituitary adenoma.

D．An inborn error of metabolisrn.
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