当树图用于多目标的因果分析时,目标不宜过多,一般不超过4个。

题型:判断题

问题:

当树图用于多目标的因果分析时,目标不宜过多,一般不超过4个。

考点:蒸发工考试中级蒸发工中级蒸发工题库
题型:判断题

计算

(1)(6a2﹣8a+11b3)﹣(11a2+2b3

(2)(3x+9)(6x+8)

(3)(4a3b﹣6a2 b2+12ab3)÷2ab

(4)(x+2)2﹣(x+1)(x﹣1)

题型:判断题

The last time I ______ to the cinema was two years ago.

A.go

B.have gone

C.have been

D.went

题型:判断题

颌下腺导管口位于

A.舌下肉阜 

B.舌下皱襞 

C.舌系带 

D.舌腹部后位 

E.下中切牙舌侧

题型:判断题

It’s very easy to see why people have bad attitudes. A quick look at the news revealing _21___ with crime, war and corruption (腐败) can easily bring us down. Is it possible to _22__ a healthy, happy attitude when surrounded by these negative things?

Sure it is! It is possible to wake up each morning with a good mood and _23__ the day. Having a positive _24__not only allows us to enjoy life more but also _25__ our health and relationships with others.

To lead a happy life, we need to have a positive attitude. We are responsible for our own _26__; other people can’t make us happy. We need to decide to make ourselves happy. This is wonderful because we don’t have to wait around for someone else to do it for us.

We should surround ourselves with __27_ people. We are influenced by those people with whom we spend the most time. When we have positive friends, we become positive. Otherwise, we become _28__.

We should also use positive_29__. A. L. Kitselman once said, “‘I am…’ are powerful words; be careful when you use them.” We need to replace our negative self-talk with positive words. Don’t say “I hate getting up in the morning.” Instead, try to say “I am _30__to see a new day.” Changing our self-talk will lead us to the changes in our behavior.

21. A. affairs         B. questions      C. troubles        D. problems               

22. A. change         B. refuse         C. keep          D. invent

23. A. look forward to        B. look down on    C. look up to      D. look back on

24. A. opinion        B. attitude       C. influence        D. answer

25. A. damages        B. improves       C. affects        D. weakens

26. A. satisfaction      B. decision       C. happiness      D. development

27. A. positive        B. friendly       C. easy-going        D. good-mannered

28. A. anxious        B. nervous       C. satisfied       D. negative

29. A. writings        B. pictures       C. expressions     D. signs

30. A. painful         B. bored         C. thankful             D. surprised

题型:判断题

为什么禁止在轴台阶处热装厚度较小、直径较大的盘形零件?

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