They say the satellite is probably______more than U.S. $ 30,000.
A．weighty
B．costly
C．valuable
D．worth

A.S.
B.
A．weighty
B．costly
C．valuable
D．worth


【参考答案】

D
这是一道词汇题。考点是意思相近的形容词的辨析和用法。