Main and Difficult Point 教学重难点
The main minerals are olivine, pyroxene, kamacite and taenite, but common point of various stone iron meteorite seldom, so it is difficult to induce class.
主要矿物有橄榄石、各种辉石、铁纹石和镍纹石，不过各种石铁陨石之共同点很少，所以很难归纳成类。
The management of database connection is a difficult point in the development of RES(Remote Education System) based on JDBC in that it is one of the main factors which can resolve the features of RES.
在基于JDBC的远程教育系统的应用开发中，数据库连接的管理是一个难点，因为它是决定该系统应用性能的一个重要因素。
It is difficult to grasp the new evidence on retrial uniformly, on the whole, the main point is restrict it strictly.
对再审新的证据的统一把握是一个较有难度的问题，总体上来说，不能脱离对其从严掌控的主线。
应用推荐