问题
判断题
排气压力是指密闭系统开始排气时的压力，排气压力是根据补气来确定的，补气和排气要尽量同时进行。
答案
参考答案：错
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排气压力是指密闭系统开始排气时的压力，排气压力是根据补气来确定的，补气和排气要尽量同时进行。
参考答案：错
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2. You can go to school ___________ a bus. 3. I don't agree ___________ you. Mary can do it by herself. 4. I always go to school ___________ bike. 5. The boys always play football ___________ school. 6. My father has to polish his shoes ___________ work every day. 7. They often have math class ___________ the morning. 8. What is Isabel ___________? 9. My birthday is ___________ May 14th. 10. I like ___________ sunglasses over there. |