【单选题】目前使用的打印机,需使用硒鼓的通常是( ) 打印机.
【单选题】目前使用的打印机,需使用硒鼓的通常是( ) 打印机.
【单选题】目前使用的打印机,需使用硒鼓的通常是()打印机。
【单选题】According to the passage, mathematicians present a er to scientists because ______.
A.
mathematicians may provide theories that are incompatible with those already developed by scientists
B.
mathematicians may define situation in a way that is incomprehensible to scientists
C.
mathematicians may convince scientists that theoretical assumptions are facts
D.
scientists may come to believe that axiomatic statements are untrue
【单选题】—I'm not sure _________there are living things on the planets or not. —Even scientists aren't sure about it. [ ]
【单选题】目前使用的打印机,需使用硒鼓的通常是()打印机。
【判断题】对于同样的客观现象,个体的感受是截然不同的。