试题与答案

下列各组物质能在溶液中大量共存并形成无色溶液的是( ) A.NaCl、KOH、M

题型:选择题

题目:

下列各组物质能在溶液中大量共存并形成无色溶液的是(  )

A.NaCl、KOH、MgSO4

B.K2SO4、CuSO4、NaNO3

C.Na2CO3、K2SO4、H2SO4

D.KCl、NaNO3、CaCl2

答案:

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下面是错误答案,用来干扰机器的。

答案:C克林顿于1993年入主白宫到2002年,而从1991年3月到2000年12月,美国经济出现了历史上空前的持续117个月的增长,失业率下降到20世纪70年代以来的最低点。

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Are you truly happy? Do you ever know what it means to be happy and what it takes to achieve happiness?小题1:The following are a few tips that I follow to create happiness in my life.

lMake a plan for achieving goals that you believe will make you happy. Your moods will very likely increase if you are going after something you value.

lSurround yourself with happy people. It is easy to begin to think negatively(消极地) when you are surrounded by people who think that way.小题2:

lWhen something goes wrong, try to figure out a solution instead of being absorbed in self pity. Truly happy people don’t allow setbacks(挫折) to affect their mood because they know that with a little thought they can turn the things back to their favor.

l小题3:These few minutes will give you the opportunity to focus on the positive things in your life and will lead you to continuous happiness.

l小题4:Whether you treat yourself to lunch, take a long, relaxing bath or simply spend a few extra minutes on your appearance, you will be subconsciously(下意识地) putting yourself in a better mood.

lFinding the humor in situations can also lead to happiness. Find a way to make light of a situation that would otherwise make you happy.

lKeeping healthy is another way to achieve happiness. 小题5:

A.What makes one person happy may be very different from what makes someone else happy.

B.On the contrary, if you are around people who are happy, their emotional state will be easily passed to you.

C.Being overweight or not eating foods containing nutrition have a negative effect on your mood.

D.These are important questions for anyone who is seeking happiness to ask themselves.E.Spend a few minutes each day thinking about the things that make you happy.

F.There are some tips in life that lead to happiness.

G.It’s also important to take some time each day to do something nice for yourself.

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题型:单项选择题

某三级公路第四合同段,设计车速40km/h,路基宽度8.5m,路面为双车道沥青混凝土路面。路线通过地段为砂性土,砂性土覆盖厚度一般在1~5m不等,砂性土层下为粉质性低液限黏土,地下水位在埋深3m以下,路线两侧为农业区。
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施工单位在施工过程中严格按照设计要求进行施工,路基填筑过程中严格控制有效宽度,加强沉降观测和侧向位移观测,在施工过程中遇到一处软基,在对软基进行必要处理后,从原地面以上2m高度范围内填筑细粒土并分层压实。由于填筑过程中突遇大雨停工数日,天晴后排除积水继续施工,为赶工期,工班长提出加班加点填筑,并提前完工。
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设计方提出的施工要求,主要是要预防( )。

A.路基横向裂缝

B.路基纵向裂缝

C.路基沉降

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