烤瓷与合金的结合,下列哪种结合力是最主要的
A.物理结合B.上述均是主要的C.化学结合D.机械结合E.压缩力结合
参考答案:C
用12厘米长的绳子,能围成边长是______厘米的正方形.
Generally speaking, the harder one works, ____________.
A.the better he gets result
B.The better results he gets
C.He gets better results
D.Does he get better results