Which measure have some countries not taken to deal with rising food prices？
A. Imposing export restrictions.
B. Seeking to control prices.
C. Appealing to the WTO.
Which of the following means that you cannot interrupt me？
A. I'm tied up.
B. I have a lot on my plate.
C. I'm busy.
教师提高教学水平最经常、最普遍的形式是（）
A. 在教育教学工作的过程中学习提高
B. 参加函授、电大课程学习
C. 参加自学考试
D. 脱产学习
代扣代缴适用于税收网络覆盖不到或很难控制的领域，如受托加工应缴消费税的消费品，由受托方代收代缴的消费税。()
A. 正确
B. 错误
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