学习策略的训练要遵循的原则有( )?
A.内化性原则
B.理论联系实际原则
C.特定性原则
D.生成性原则
参考答案:A,C,D
方程3x+4y=9,如果2y=6,求x的值.
In a given month, Friday is the 21st day of the month. What day of the week was the 5th of the month? ()
A.Monday
B.Thursday
C.Saturday
D.Wednesday