【简答题】??【案例九】某工厂计量实验室里有一台新进口的高精度电子分析天平,准各作为企业计量标准使用。这台天平已经使用了二个月,其使用说明书未翻译出中文??,??并贴着合格标志。考评员问:这台天平是否进行过检定?室主任回答说:“国外这个厂家的产品质量很好,我们事先做过调查,买的时候附有厂家产品合格证,质量上应该能够放心,我们准各使用一段时间后再请计量部门检定。”问:室主任的观点是否正确?
【判断题】UIWindow继承自UIView,是程序创建的第一个视图控件。如果没有UIWindow,程序就没有任何UI界面。
【单选题】Which of the following statements is NOT ture?
A.
a.Drugs are always given to animals for medical reasons
B.
b.Some of the additives in our food are added to the food itself and some are given to the living animals
C.
c.Researchers have known about the potential dangers of food additives for over thirty-five years.
D.
d.Food may cause forty percent of cancer in world.
【简答题】有8个外表o样的球,其中只有o个是次品,重量比正品略轻,不用砝码,用天平称至少要______次就能保证把次品找出来.
【单选题】Which of the following statements is TRUE?
A.
. Marty got the muscle disease when he was born.
B.
. Marty looks different from others.
C.
. Most of Marty ’ s fellow students have accepted him at high school.
D.
. Marty wants the healthy children to feel sorry for him.