砼试件养护龄期从()时开始计时。
A、试件成型完毕
B、试件拆模
C、试件移入养护室
D、拌合物加水
参考答案:D
-Oh, it’s you, Steve! I ______ you.
-No surprising. I’ve just had my hair cut.
A.don’t recognize
B.haven’t recognized
C.didn’t recognize
D.hadn’t recognized
BAILING BUCKET的中文是()
A.戽斗
B.哨子
C.海锚
D.定位光