径电磁搅拌的铸坯等轴晶率提高，柱状晶率降低。
参考答案：对
We lost our way in that small village, otherwise we ____ more places of interest yesterday. [ ]
A. visited
B. had visited
C. would visit
D. would have visited
在瓶组压力达到充装压力的()以后，禁止再插入空瓶进行充装。
A．5%
B．10%
C．15%
D．20%
