中国民族资本主义企业在第一次世界大战期间一度发展迅速，促使这一局面出现的外部条件是（      ）

Hey，Mike! ____ ____to you．

阅读下面古诗。
                                                                                                  陇西行 陈陶
                                                                                              誓扫匈奴不顾身，

                                                                                              五千貂锦丧胡尘。

                                                                                              可怜无定河边骨，

                                                                                              犹是春闺梦里人。

682－375= ____        243－156=____