干式汽缸套的外表面可以与冷却水接触()
参考答案:错
一段布料,正好做12套儿童服装或9套成人服装,已知做3套成人服装比做2套儿童服装多用布6米,这段布有多长()
A.24米
B.36米
C.54米
D.48米
—Where ___________ you go yesterday? —I ___________ to the beach.
A.did; go
B.did; went
C.do; go
D.do; went