People sit more than before because______.
A.they become lazy
B.the office is well equipped
C.many people own cars
D.their lifestyles have changed
请帮忙给出正确答案和分析,谢谢!
某集体食堂物在处理蔬菜的过程中,采用切后再洗,而且洗前经常要浸泡0.5~1小时,这样的处理方法最容易损失的是
A、维生素C
B、胡萝卜素
C、纤维素
D、维生素E
E、维生素K
请帮忙给出正确答案和分析,谢谢!
烟气粒相物中一般含有()左右的水分。
A.0.50%
B.0.15%
C.0.10%
D.0.20%
请帮忙给出正确答案和分析,谢谢!
To many Americans, Obamas election as President marked______.
A.the ending of violence
B.a turning point in race relations
C.a new situation of the world
D.a change in diplomacy
请帮忙给出正确答案和分析,谢谢!
What is the first thing you should do after losing a job?
A.Make a career change.
B.Figure out the next step.
C.Go to a bigger city.
D.Have a short-time holiday.
请帮忙给出正确答案和分析,谢谢!
叶片结构与烟叶理化特性有密切关系,表现为()。
A.叶片结构疏松的烟叶,弹性强,填充性和燃烧性好
B.叶片结构紧密的烟叶,弹性强,填充性和燃烧性好
C.叶片结构尚疏松的烟叶,弹性强,填充性和燃烧性最好
D.叶片结物稍紧密的烟叶。弹性强,填充性和燃烧性最好
请帮忙给出正确答案和分析,谢谢!
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