【单选题】设集合M={0,1,2,4},集合N={0,3,5},则M∩N= [ ]
【多选题】雷雨天气需要巡视室外高压设备时,应穿绝缘靴,并不得接近()。
【单选题】设集合M={-1,0,1},N={a,a 2 }则使M∩N=N成立的a的值是( )
【判断题】雷雨天气需要巡视室外高压设备时应穿绝缘靴,并不得靠近避雷器和避雷针。
【单选题】According to the text, what is a 'free-for-all verb'?
A.
An irregular verb like 'grow' or 'speak'.
B.
A verb that is converted from a noun at will.
C.
A verb that is formed by taking off an affix from a noun.
D.
A verb that does not comply with grammatical rules.
【简答题】皂苷溶血作用的原因及表示方法?含有皂苷的药物临床应用时应注意什么?