地方时差异是地球____ 转造成的.
If their marketing plans are changed, theirs sales by 10 percent.
—Mike,I passed the test this morning.
—
下列事件在阿拉伯半岛的统一过程中起了加速作用的是( )
解释下列词语。
①惊心动魄:
②气壮山河: