最适宜运输石油、天然气的运输方式是
A．公路运输
B．管道运输
C．水运运输
D．航空运输
答案：B
–Peter has good grades in all his subjects, but he never shows off.
–I agree. He is very _________.
A．easy-going
B．imaginative
C．modest
D．generous
简述内容分析的长处与局限。
