新时期最鲜明的特点是与时俱进。 ( )
参考答案：错
干扰孕卵着床的避孕药
A．甲地孕酮片 B．炔雌醇 C．黄体酮 D．棉酚． E．复方炔诺酮片
129. Come on, guys. We’ve been working hard and long. Let’s______. Go home and get relaxed.
A．call it a day
B．stop the day
C．put off the day
D．cancel the day
