施工成本过程控制的原则有哪些 2．项目施工成本过程控制的内容是什么

Einstein was born in 1879 in Germany. As a child, he was slow to learn to talk. As a pupil, he was backward. But when he was fourteen years old, he became clever. He taught himself maths from textbooks. He studied hard because he wanted to be a physicist.

In 1901, Einstein began teaching. In 1902 he continued his studies at the University of Zurich. Several years later, he formulated(系统地阐述)his famous Theory of Relativity(相对论).To most people the law of relativity is difficult to explain. But once Einstein explained it to a group of young students. He said,” When you sit with a good girl for two hours, you think it is only a minute. But when you sit on a hot stove for a minute, you think it's two hours. That is relativity."

After Hitler came into power in Germany, Einstein went to America. In 1940 Einstein became an American citizen. In 1955, Einstein's life ended at the age of seventy-six.

36. When Einstein was a pupil of twelve, he _______.

A. was not quick in learning to talk       B. was poor in his studies

C. studied very hard                   D. hardly lagged behind

37. The law of relativity is_______ .

A. very hard for most people to understand

B. too hard for Einstein himself to explain

C. too hard to explain to anybody except Einstein

D. easy to understand only for the young students

38. Which of the following do you think is true?

A. The Germans owed their scientific progress to Einstein.

B. The Americans owed all their economic development to Einstein.

C. Einstein owed a great deal to the modern world.

D. Einstein made a very great contribution to modern science.

39. The title for this passage should be " _______ ".

A. Theory of Relativity          B. An American Citizen

C. Albert Einstein              D. Einstein's Contribution

EDTA盐抗凝剂不宜用于()

A．凝血象检查和血小板功能试验

B．白细胞计数

C．血小板计数

D．白细胞分类计数

E．红细胞计数

整修开关箱及配管、配线应达到哪些要求？

通常用作毛发穿孔试验阳性对照的菌株是（）

A.红色毛癣菌

B.紫色毛癣菌

C.石膏样毛癣菌

D.许兰毛癣菌

E.玫瑰色毛癣菌

无效劳动合同，指当事人违反法律、行政法规的规定，订立的不具有法律效力的劳动合同。它虽是当事人双方协商订立的，但经国家规定的专门机构认为无效合同后，国家则不予确认，法律不予保护。 根据以上定义，下述哪种行为是典型的无效劳动合同( )。

A．农民工小王被某印刷厂雇佣，书面合同规定管吃管住，月薪800元人民币，无节假日

B．四川民工小王，在公开劳动市场被某餐馆雇佣，签订劳动合同，并当场作了合同公证

C．四川民工小王，在劳动行政部门的鉴证下，与某水泥厂签订了劳动合同

D．农民工小王被某印刷厂雇佣，书面合同规定月薪800元人民币，并口头约定遵循国家相关的政策和法律