“春天的到来”是（）。
A.主谓短语
B.中补短语
C.名词性偏正短语
D.动词性偏正短语
参考答案：C
—There ________ no milk in the fridge (冰箱). Could you get some for me,Dick?
—All right, Mum.[ ]
A. is
B. are
C. was
D. were
下列哪一种血清酶对急性心肌梗死的诊断最具特异性（）
A.LDH
B.CK-MB
C.A1T
D.GGT
E.AST
