【判断题】学生应该养成精益求精的专业精神,追求卓越,勇于创新,学会尊重合作者与同行;( )
【单选题】易燃气体是指温度在20℃、标准大气压101.3kPa时,爆炸下限≤13%,或燃烧范围不小于()个百分点的气体。
【判断题】十字花科蔬菜在烹调时应避免水煮或者炖制。
【单选题】指出下列选项中那一步交响曲是贝多芬创作的高峰和总结?
【单选题】As a reporter, you should first decide what events ____ before you make some interviews.
【单选题】易燃气体是指温度在 20℃、标准大气压 101.3kPa 时,爆炸下限12 个百分点的气体,其火灾危险性不包括( )。
【单选题】______ you decide to take up, you should try to make it a success.
【单选题】__________ you are old enough to judge things, you should decide your path in life.