实现我国教育目的的根本途径是班主任工作。( )
参考答案:错
解析: 实现我国教育目的的根本途径是教育与生产劳动相结合。
若圆的一条弦把圆分成度数之比为1:3的两条弧,则这条弦所对的圆周角等于( )
A.45°
B.135°
C.90°和270
D.45°和135°
The students asked _________________.
A.when can they surf the Internet in class
B.when could they surf the Internet in class
C.when they could surf the Internet in class
D.when they can surf the Internet in class