临床应用较多的异位激素是（）
A.儿茶酚胺类
B.前列腺素
C.HCG
D.CT
E.ACTH
参考答案：C
— Linda had nothing for breakfast this morning, ______?
— No. She got up too late. [ ]
A. had she
B. hadn't she
C. did she
D. didn't she
报关企业必须是具有境内法人地位的经济实体，通常是独立法人。( )
