皮皮学，免费搜题
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【单选题】
表面活性剂的增溶机理属于A.
络合物
B.
胶束
C.
复合物
D.
物
E.
离子对
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【简答题】The human body is a living machine, and, like all machines, it needs "fuel" ( 燃料 ) to supply it with energy. This is provided by the food we eat. But how much do we need to stay healthy? The energy va...
【多选题】Questions 1—5 are based on the following passage. You need to complete the article with the sentences at the end of this section. There are two extra sentences that you do not need to use. 1.______ Th...
A.
Your body uses the food you eat to help you grow, to provide you with energy, and to help you fight against infection and disease.
B.
Another important task of food is to provide your body with energy, which you need for activities such as walking, swimming, skating, and dancing.
C.
In order to live, you need nutrients-nourishing substances that enable the cells of your body to work.
D.
People’s diet varies greatly throughout the world.
E.
If you eat foods from each of the first five four groups (not the fatty and sugary foods) everyday, you should have no problem staying healthy.
F.
A diet that give you the right amount of nutrients and calories is a balanced diet.
G.
How should we get all the nutrients we need in a day.
【简答题】电气控制电路中,交流接触器的主触头连接在电动机 电路上;辅助常开触头和辅助常闭触头通常连接在电动机 回路中。
【简答题】电气控制电路中,交流接触器的主触头连接在电动机 ____电路上。
【单选题】某企业利用资金优势和技术优势,有选择地兼并某些处于亏损状态的企业,实现了低成本扩张。目前,该企业已经在湖北、广东、贵州等地建立起控股公司,产品沙及多个领域,真正收到了1+1>2的经济效果。这反映了该企业提高经济效益的主要途径是( )。
A.
开发适销对路的新产品
B.
创新技术，推动企业集约型发展
C.
适度扩张，追求规模效益
D.
提高质量，树立良好信誉
【简答题】In the body part, the first paragraph we often ______________; the second paragraph we can write _________; the last paragraph usually _____________. (use the correct form of the word)
【简答题】电气控制电路中,交流接触器的主触头连接在电动机 (主,控制)电路上。
【简答题】电气控制电路中,交流接触器的主触头连接在电动机 电路上;常开辅助触头和常闭辅助触头通常连接在电动机 回路中。
【单选题】某企业利用资金优势和技术优势 , 有选择地兼并某些处于亏损状态的企业 , 实现了低成本扩张。目前 , 该企业已经在湖北 , 广东、贵州等地建立起控股公司 , 产品涉及多个领域 , 真正收到了 1+1>2 的经济效果 , 这反映了该企业提高经济效益的主要途径是 ( )
A.
开发适销对路的新产品
B.
创新技术
C.
适度扩张 , 追求规模效益
D.
提高质量 , 树立良好信管
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