【单选题】某学生某门课成绩为75分,则“成绩”是( )。
【单选题】矿石的含铁量即矿石的品位,是蘅量铁矿石质量的主要指标,有使用价值的铁矿石含铁量一般在( )之间。
【简答题】输入某学生的数学(math)、英语(english)和C语言(c)的成绩,输出该学生这三门课的成绩、总成绩(sum)和平均成绩(aver)。
【简答题】On hearing the good news that we got the first place in the competition, we all got______(excite).
【简答题】晶闸管的过电流保护有()保护,()保护,限流与脉冲移相保护.
【单选题】When we think about happiness, we usually think of something extraordinary, a peak of great delight--and those peaks seem to get rarer the older we get. For a child, happiness has a magical quality. I...
A.
feel the magic quality of pleasure
B.
experience delight at an old age
C.
think of something extraordinary
D.
enjoy what one has at the moment