【简答题】袋中放有3个红球,3个黑球和4个白球,这些球除了颜色意外其它方面都相同,求任取两球取得一个红球一个黑球的概率是多少?( )
【单选题】选择最佳译文: 5. 科学是讲求实际的。科学是老老实实的学问,来不得半点虚假,需要付出艰巨的劳动。
A.
Science deals with things in a practical way. Science means honest,solid knowledge, allowing not an iota of falsehood. and it involves Herculean efforts and grueling toil.
B.
Science stresses reality. Science is honest learning, allows not an iota of falsehood and needs hard work.
C.
Science stresses reality. Science is honest knowledge. Free from falsehood, and it needs Herculean efforts and grueling toil.
D.
Science stresses practice. Science is honest knowledge. Free from falsehood, and it needs Herculean efforts and grueling toil.
【单选题】通常情况下,市场利率上升会导致证券市场行情________。
【单选题】下列甸子中加点词语的意义和用法与例句相同的一项是( ) 例:如使人之所欲莫甚于生
【单选题】当差速器壳的速度为零时,如一侧半轴齿轮受外力矩而旋转时则另一半轴以()。
【单选题】下列句子中,加点词语的用法和例句相同的一项是 ( ) 例句:乃遂收盛樊於期之首,函封之
【单选题】通常情况下,市场利率上升会导致证券市场行情________。