It's time _____ have supper now. [ ]
A. to
B. for
C. of
D. on
答案:A
One teaspoon can hold only ______milk. [ ]
A. a few
B. a little
C. few
D. little
在水泥混凝土路面常见质量问题中的中等裂缝,是指裂缝有一定程度剥落(裂缝剥落长度为10%~50%裂缝长度)或裂缝两边板块存在中等错台(错台量6mm~10mm),或裂缝缝隙宽度为3mm~15mm。