【单选题】How did Eiffel make the iron belt running from pillar to pillar perfectly horizontal?
A.
He made a careful plan.
B.
He used hair to test whether the tower is tilting.
C.
He embedded water jack in the column.
D.
He deployed creeper cranes.
【单选题】(2014年)彩虹鸡尾酒采用的调制方法是
【单选题】Manufactures make most engine pistons from ________, which is less than half the weight of iron.
【单选题】Cast iron can be used to make? 铸铁可以制作?
【单选题】美丽的鸡尾酒“彩虹”,是用五种不同颜色的基酒和果汁调制而成的一款鸡尾酒,它采用的调制方法是()。
【简答题】make —— iron and glass —— different —— others
【判断题】下图所示电路能够实现所规定的的功能。 L2=AB+CD
【单选题】Manufacturers make most engine piston from ______, which is less than half the weight of iron.