旋涡式喷头使药液雾化和程度主要与()()有关。

题型:填空题

问题:

旋涡式喷头使药液雾化和程度主要与()()有关。

考点:机械工程植保机械植保机械题库
题型:填空题
已知向量
m
=(1,2),
n
=(-1,1)

(Ⅰ)若λ
m
+
n
m
-
n
平行,求实数λ的值;
(Ⅱ)求
m
+
n
n
上的投影.
题型:填空题

In the 1960s, many young Americans were dissatisfied with American society. They wanted to end the Vietnam War and to make all of the people in the U.S. equal. Some of them decided to "drop out" of American society and form their own societies. They formed utopian communities, which they called “communes”, where they could follow their philosophy of “do your own thing”. A group of artists founded a commune in southern Colorado called "Drop City." Following the ideas of philosopher and architect Buckminster Fuller, they built dome-shaped houses from pieces of old cars. Other groups, such as author Ken Kesey’s Merry Pranksters, the followers of San Francisco poet Steve Gakin, and a group that called itself the Hog Farm, lived in old school houses and traveled around the United States. The Hog Farm became famous when they helped organize the Woodstock Rock Festival in 1969. Steve Gaskin’s followers tried to settle down on a farm in Tennessee, but they had to leave when some members of the group were arrested for growing marijuana.

  Not all communes believed in the philosophy of “do your own thing”. However, Twin Oaks, a commune founded in Virgiania in the late 1960s, was based on the ideas of psychologist B.F.Skinner. The people who lived at Twin Oaks were carefully controlled by Skinner’s “conditioning” techniques to do things that were good for the community. In 1972, Italian architect Paolo Soleri began to build Arcosanti, a utopian city Arizsona where 2500 people will live closely together in one large building called an “archeology”. Soleri believes that people must live closely together so that they will all become one.

小题1:Why did some young Americans decide to “drop out” of society during the 1960s?

A.They were not satisfied with American society.

B.They wanted to grow marijuana.

C.They wanted to go to the Vietnam War.

D.They did not want all people to be equal.小题2: Where did the members of the Hog Farm commune live?

A.In dome-shaped house.

B.In old school houses.

C.On a farm in Tennessee.

D.In an archeology in Arizona.小题3: Who gave the people of Drop City the idea to build dome-shaped house?

  A. Paolo Soleri.               B. B.G.Skinner.

  C. Steve Gaskin.                D. Buckminster Fuller.

小题4: What was the Twin Oaks commune based on?

A.The philosophy of “do your own thing”.

B.Virginia in the late 1960s.

C.The ideas of psychologist.

D.The belief that people must live closely together.小题5: What is an “archeology”?

A.A person who studies archaeology.

B.A large building where people live closely together.

C.A city in Arizona.

D.A technique to control people.

题型:填空题

急性左心衰竭的诊断要点包括()

A.心脏病史和诱因

B.典型临床表现

C.X线示从双肺门向周围肺野扩展的蝶翼形云雾状阴影

D.心排血指数低于2.2L/(min·m)

E.肺毛细血管楔压大于18mmHg

题型:填空题

当新工人上岗前()。

A.应派人员对其进行各种规章制度,操作规程,工艺流程等学习和培训

B.应由班长对其进行各种规章制度,操作规程,工艺流程等学习和培训

C.应由师傅对其进行各种规章制度,操作过程,工艺流程等学习和培训

题型:填空题

邮政储蓄POS预授权交易完成后()天内,如不发生相应交易的预授权完成或撤销,预授权金额次日起自动解止付。

A、10

B、20

C、30

D、50

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