单选题下列属于制备PGA的方法有（）A一氧化碳甲醛共聚法BNCA法C活性脂法D发酵法
单选题
下列属于制备PGA的方法有（）
A
一氧化碳甲醛共聚法
B
NCA法
C
活性脂法
D
发酵法
参考解析
解析：
暂无解析
相关考题：
WhentuningAutomaticPGAMemoryManagement,whichofthefollowingviewswillprovidetheinformationspecified?() A.TheV$PGA_TARGET_ADVICEviewshowsthepredictedcachehit-ratioimprovementifyou increasePGA_AGGREGATE_TARGETB.TheV$PGA_TARGET_ADVICEviewshowshowtheV$SQL_WORKAREAhistogramwill changeifyouchangethevalueofPGA_AGGREGATE_TARGETC.TheV$PGA_TARGET_ADVICE_HISTOGRAMviewshowshowtheV$SQL_WORKAREA_HISTOGRAM willchangeifyouswitchbetweenManualandAutomaticPGAMemoryManagementD.TheV$PGA_TARGET_ADVICEviewshowshowperformancewillimproveforthedifferentworkareas ifyouswitchfromManualtoAutomaticPGAMemoryManagement
单选题When tuning Automatic PGA Memory Management， which of the following views will provide the information specified？（）A The V$PGA_TARGET_ADVICE view shows the predicted cache hit-ratio improvement if you increase PGA_AGGREGATE_TARGETB The V$PGA_TARGET_ADVICE view shows how the V$SQL_WORKAREA histogram will change if you change the value of PGA_AGGREGATE_TARGETC The V$PGA_TARGET_ADVICE_HISTOGRAM view shows how the V$SQL_WORKAREA_HISTOGRAM will change if you switch between Manual and Automatic PGA Memory ManagementD The V$PGA_TARGET_ADVICE view shows how performance will improve for the different work areas if you switch from Manual to Automatic PGA Memory Management
问答题冷沉淀凝血因子制备有哪些方法？对于制备的原料有什么要求？每个方法的如何操作？