标注尺寸中,不允许出现()的尺寸链。
参考答案:封闭
—You have made a lot of mistakes in the exam.
—___________
—I’ll give you a second chance.
A.You must be kidding.
B.I’m afraid not.
C.How come?
D.What should I do?
[听力原文] 布什内尔看到什么受到了启示?()
A.英国的战舰
B.秘密船
C.游来游去的小鱼
D.大鱼潜游突袭小鱼