问题
判断题
柴油的十六烷值越高,燃烧性能和低温启动性能就越好。
答案
参考答案:对
柴油的十六烷值越高,燃烧性能和低温启动性能就越好。
参考答案:对
用方框中所给词的适当形式填空 | |
-Wow ! They look so cute ! 2. Simon had an accidentl A car hit him, but________he was OK. 3. The UN(联合国)is a world ________. 4. He________ two thousand yuan. for the color TV. 5. I am________ to hear you are coming to visit us. |