下列预测方法依赖于选择适当的人员,由他们来作出预测的是()
A. 时间序列分析
B. 简单移动平均法
C. 德菲尔法
D. 专家意见法
E. 指数平滑法
当采用简单等移动平均法预测时,取平均值的数据越多,则其预测准确度越高。
A. 对
B. 错
Directions: Fill in the blanks with a word or a phrase that best completes the passage. You may choose a suitable one from the list given.mark intentionally as opposed toeven if confused likely known potential called upon naturalGifts are those talents and abilities that flow almost effortlessly from us. Gifts are sometimes 1 with skills. While skills can be developed, gifts are something we are born with - they are what we discover as we try new things and find that some things are as 2 to us as breathing.When we 3 a decision to create our life and work based on our gifts, we're not only more 4 to succeed, but can also more thoroughly enjoy the journey toward creating and realizing our full 5.Take inventory of(评估)your life to determine where you are utilizing learned and developed skills 6 expressing and honoring your innate(与生俱来的)gifts. Are you operating based on what you think you "ought" to be doing or are you living an authentic life that is rich and fulfilling?7 you are not in a place to pursue a new career based on your gifts, look for ways to make your gifts 8 known to others and demonstrate them in as many areas of your life as possible. The more your gifts are 9, the more naturally you will fully accept and promote those gifts. The more you express your life through your innate gifts, the more you will excel. It's a beautifully self-perpetuating(能使自身永久存在的)process once you make the decision to begin.Your gifts are your signature, your unique paintbrushes - use them to express your greatness and make your greatness and make your 10 on the world!
SiF4分子中Si原子的成键杂化轨道应是( )
A. sp
B. sp2
C. sp3
D. 不等性sp3