【简答题】什么是背对背 ?什么情况下需要进行背对背测试?
【简答题】对百级层流的保护可否用风帘?A级区下有人员操作的情况下如何进行有效控制?无菌区是否需要将A级区与B级背景有效隔开,以保证百级层流风向?(FL-1-9)
【多选题】Complete the following sentences with appropriate words given below (20%)(请填写相应的字母)
J.
passion 1. It's important not to let mistakes your life. 2.Both sides consider it to further the understanding between the two peoples. 3. The English have a for gardens. 4. They have made contributions to their nation. 5. They have to certain criteria; they have to be positive and uplifting. 6. You will not get the chance to win if you remain . 7.When dogs used to do this when they saw elephants, the elephants would get annoyed and them. 8. He wants to everything, can't give up a single thing. 9.The huge tree that had been blown down by the storm was an to traffic. 10. All that money brought nothing but sadness and misery and .
【简答题】通常情况下,如果要的对在均匀背景下拍摄的镜头进行抠像,可以只对一帧画面进行抠像,不需要制作关键帧,这一帧尽量选取镜头中 的帧,如果拍摄时灯光或背景有变化,在抠像中也可以用关键帧,但是在设置关键帧时需要注意,必须在同一种光效下使用 抠像效果,即在开始和结束的位置均设置关键帧。
【单选题】供应链中的()适合于描述企业集团的组织结构。
【判断题】微信小店的推送,要根据客户群体对产品喜好的共同特性来做针对性的内容推送。
【简答题】当助滤剂的粒度一定时,过滤速率与澄清度成( ),过滤速率大,澄清度( );过滤速率小,则澄清度( )。
【单选题】Many people are misled by astrology because it is presented by the practitioners as _____.
A.
a theory that can describe natural phenomena
B.
a magical key to understanding themselves
C.
an ancient belief that had long been applied to monarchs
D.
a mysterious power beyond the explanation of science