【单选题】We can't ________ against other countries in trade if we don't develop our national economy. [ ]
【单选题】下列关于激光打印胶片,说法不正确的是
A.
保护层的主要作用是保护感光层,具备防止静电的作用
B.
有些胶片也采用100μm厚的涤纶片基作为支持体
C.
防光晕层的作用是防止曝光时片基背面的光反射作用
E.
防光晕层的颜色和乳剂层的感光光谱没有任何关系
【判断题】天津人、画家张兆祥其作品传世甚少,尤为宝贵,藏于天津市艺术博物馆的《石榴花》,色彩浓艳,风姿绝伦,堪称珍品。
【单选题】What can be inferred from the last paragraph?
A.
It's important that we develop a social network when young.
B.
To stay healthy, one should have a proper social network.
C.
Getting a divorce means risking a reduced life span.
D.
We should share our social networks with each other.
【单选题】We can infer that ______ environments help develop a person's intelligence.
【单选题】We can infer that ______ environments help develop a person's intelligence.
【判断题】商务智能指收集、转换、分析和发布数据的过程,目的是为了更好的决策。