“是书何以作？为以夷攻夷而作……为师夷长技以制夷而作。”“是书”指的是 [ ]
A、《海国图志》
B、《资政新篇》
C、《天演论》
D、《定国是诏》
答案：A
The child asked his mother _______ go out to play tennis.
A．that he could
B．if could he
C．if he could
D．that could he
锅炉炉墙进行烘炉后，炉墙灰浆试样中水分降至( )%以下为合格。
A．1.0
B．1.5
C．2.0
D．2.5
