在进行同位素测井找窜施工时,操作人员在室内使用半衰期短的放射性同位素配制完后,用()将其送往施工现场。
A、铁制容器
B、铝制容器
C、铜制容器
D、铅制容器
参考答案:D
— Mom, I' m going to the graduation dance tonight but I don' t think I look attractive enough.
— Oh, darling, don' t worry. _______ [ ]
A. They don't know what beauty is.
B. Nobody will care about it.
C. You look perfect the way you are.
D. Impossible is nothing.
合理减肥应该控制在每月()kg为宜。
A、1
B、1~2
C、1.5~2.5
D、2.5~3