【单选题】下列说法中,正确的个数有( ) ①同一平面内,不相交的两条直线是平行线;②在同一平面内,两条不相交的线段是平行线; ③过一点可以而且只可以画一条直线与已知直线平行;④一条直线有无数条平行线; ⑤过直线外一点可以作无数条直线与已知直线平行.
【简答题】What did Albert Einstein and Thomas Edison have in common?
【判断题】过平面外一条直线可以作无数个平面与已知平面垂直
【单选题】Who has been working at the making of the atomic bomb from beginning to end'?
D.
J. Robert Oppenheimer.
【单选题】改革开放 40 年来,我国实践上的每一次创造,理论上的每一次突破,事业上的每一次进步,无不闪耀着实践是检验真理的唯一标准的光辉,实践之所以能够成为检验认识的真理性的唯一标准是因为()
【简答题】大众包餐公司实施准时化服务有无困难,请加以解释。
【单选题】What did Albert Einstein and Thomas Edison have in common?
A.
They were thought to be slow learners in childhood, but they made magnificent discoveries through their hard work.
B.
They were thought to be fast learners in childhood, and they made magnificent discoveries through their hard work.
C.
They were thought to be slow learners in childhood, and they failed to make magnificent discoveries.
D.
They were thought to be fast learners in childhood, but they failed to make magnificent discoveries.
【单选题】The teacher asked the students ________.
A.
if they were interested in dinosaurs
B.
when was Albert Einstein born
C.
what they will do with the computers
D.
how many trees they have planted
【判断题】经过平面外一条直线可以作无数个平面与已知平面垂直。
【简答题】在引入第三方物流服务中你会向大众包餐公司提出什么建议?