单项选择题
Often such arguments have the effect of （）rather than clarifying the issues involved.
A．obscuring B．prejudicing C．tackling D．blocking
单项选择题 He blew out the candle and （）his way to the door.
单项选择题 Hill slopes are cleared of forests to make way for crops, but this only （）the crisis.
单项选择题 The glass vessels should be handled most carefully since they are （）
