【多选题】信用条件是指销货企业要求赊购客户支付货款的条件,其构成要素包括( )
【单选题】网站的主流技术路线主要有两类:一是基于Java 技术的J2EE体系结构,一是基于.net技术的体系结构。在基本理念上,J2EE强调()
【多选题】Cholesterol has several fates:
A.
Most of the cholesterol synthesis in vertebrates takes place in the liver. A small fraction of the cholesterol made there is incorporated into the membranes of hepatocytes, but most of it is exported in one of three forms: as bile acids, biliary cholesterol, or cholesteryl esters.
B.
Small quantities of oxysterols such as 25-hydroxycholesterol are formed in the liver and act as regulators of cholesterol synthesis.
C.
In other tissues, cholesterol is converted into steroid hormones (in the adrenal cortex and gonads, for example) or vitamin D hormone (in the liver and kidney).
D.
Such hormones are extremely potent biological signals acting through nuclear receptor proteins.
【简答题】飞机在()中飞行比较平稳,阻力小,但因空气密度很小,故驾驶员操纵的反应力度也小,即可操纵性低于对流层。
【简答题】Dear Mr. Bush, Thank you for your 1 of January 5 for our Beauty Brand Blouses. We are now exporting 2 of various brands, among which Beauty Brand is the most famous. They are in great ## 3## abroad an...
【多选题】“7.3教学微课”展示的相应标段土建工程中的车站(长江路站)主体结构施工内容按照步骤 包括( )
A.
破除原路面后开挖至第一层混凝土支撑底;施工第一层混凝土支撑后开挖至第二层钢支撑下 50cm 处
B.
架设第二层钢支撑后开挖至第三层钢支撑下50cm处; 架设第三层钢支撑后开挖至设计基底标高,施作接地网,混凝土垫层铺设防水卷材; 浇筑主体底板
C.
待底板混凝土强度达到设计强度80%以上后,拆除第三层钢支撑,铺设站台层侧墙防水层,进行钢筋绑扎,浇筑侧墙及中板混凝土
D.
待站台层侧墙及中板混凝土强度达到设计强度100%以上后,拆除第二层钢支撑,施作站厅层侧墙防水层,进行钢筋绑扎,浇筑侧墙及顶板混凝土
E.
待车站侧墙及顶板混凝土强度达到设计强度100%以上后,拆除第一层混凝土支撑,施作压顶梁和顶板防水层并恢复路面
G.
出长江路站沿新梅路下穿出入段线隧道后向机场站左右线进发
【单选题】The main fate for cholesterol is
A.
be converted to fatty acids
B.
be converted to Vitamin D3
C.
be converted to steroid hormones
D.
be converted to bile acid
E.
be converted to cholesterol ester
【简答题】Reading comprehension (Reading in depth) (答案只需填写小写字母即可) 1 There is a passage with ten blanks. You are requested to select one word for each blank from a list of choices given in a word bank following ...
【单选题】261. 把放大电路的输出信号电压或电流的( )通过反馈电路,送回到输入端的过程叫反馈。