在抽真空状态下密封的产品包装容器,应当在预先确定的适当时间后,检查其()。
参考答案:真空度
—Excuse me. _____ Sam _____ a football?
—Yes, he _____. [ ]
A. Can; has; can
B. Does; have; has
C. Does; has; has
D. Does; have; does
忽必烈派遣从宁波出发征日本的兵将中,占多数的是新附军。