该项目第三年涨价预备费为()
A.2536.88
B.1418.63
C.562.50
D.4518.01
参考答案:B
Look at that new model plane. It must_____ a lot of money. [ ]
A. cost
B. pay
C. spend
D. take
下列哪项对卵巢肿瘤的诊断无意义?()
A.CA125(癌抗原125)
B.AFP(甲胎蛋白)
C.HCG
D.促性腺激素
E.性激素