【判断题】标准镜头的特征是:拍摄画面不变形丶不失真。
【单选题】( )强调“我们党领导人民进行社会主义建设,有改革开放前和改革开放后两个历史时期,这是两个相互联系又有重大区别的时期,但本质上都是我们党领导人民进行社会主义建设的实践探索。中国特色社会主义是在改革开放历史新时期开创的,但也是在新中国已经建立起社会主义基本制度、并进行了20多年建设的基础上开创的。”
【单选题】, Which of the following statement is wrong regarding the de novo synthesis of purine nucleotides:
A.
IMP is first synthesized, and then branched into synthesis of AMP and GMP.
B.
Substrate ribose-5-phosphate in the salvage pathway of nucleotide synthesis is provided by 5-phosphoribosyl-1-pyrophosphate.
C.
Both of the synthesis of 5-phosphoribosyl-1-pyrophosphate (PRPP) and 5-phosphoribosyl-1 amine (PRA) are regulatory points in the de novo synthesis of purine nucleotides.
D.
The synthesis of 5-phosphoribosyl-1 amine (PRA) is the committed step in the de novo synthesis of purine nucleotides.
E.
It is the least important pathway for purine nucleotide synthesis.
【单选题】砂有I类、II类、III类三个级别,,III类砂宜用于( )。
【单选题】Qu'est-ce que Joëlle aime ?
C.
Elle aime le vin(酒) français.
D.
Elle aime la haute couture(高级时装).