堤防的正常沉降过程应该是()沉降快、后期沉降慢,直至趋于停止。
A.不定期
B.定期
C.中期
D.初期
参考答案:D
The women’s club _________ Lin, a foreign company employee who used to pay little attention to her appearance, to improve her dress style and become more confident and open-minded.
A.enabled
B.had enabled
C.has enabled
D.enables
在MPEG中,为了提高数据压缩比,采用了方法。()
A.运动补偿与运动估计
B.减少时域冗余与空间冗余
C.向前预测与向后预测
D.帧内图像压缩与帧间图像压缩