一般货船，总吨GT比净吨NT（）。
A．大
B．相等
C．小
D．关系不定
参考答案：A
在实数范围内因式分解：9x2﹣5= _________ ．
—Would you mind turning down the music?
—______.[ ]
A. Sorry, I'll do it right away
B. Sorry, I won't do it again
C. Of course, I'll do it in a minute
D. Of course, I won't do it
