1. that引导的从句e.g. It is reported that one third of Guangzhou citizens plan to buy a private car. 2. whether/if引导的从句e.g. Whether motorcycles should be banned in Gua...
这样,当您检索到您所需要的专利时,只要点击页面上方的'Images'便可以浏览图像格式的说明书全文,并可以下载与打印。相关链接 中国政府网 国务院部门 局属单位 代办处 相关网站 国家...
注意:只能用whether而不用if的三种情况如下: ①与or not连用:They asked us whether or not we were coming. ②在介词之后:It depends on whether it is going to rain. 3.在不定式之前...
更多内容请点击:如何使用复合句写出漂亮的雅思作文