皮皮学,免费搜题
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搜题
【单选题】
下列不属于危险化学品的是
A.
汽油、易燃液体
B.
放射性物品
C.
氧化剂、有机过氧化物、剧毒药品和感染性物品
D.
氯化钾
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【单选题】飞机着陆接地前机头有自动下俯的趋势,原因描述正确是 。
A.
飞机下沉,俯仰稳定性使飞机下俯
B.
飞行员松杆
C.
接近地面,地面效应导致飞机产生下俯力矩
【简答题】简述提高酶产量的措施.
【多选题】提高酶产量的措施有
A.
添加诱导物
B.
添加表面活性剂
C.
控制阻遏物
D.
添加促进剂
【单选题】飞机着陆接地前机头有自动下俯的趋势,原因描述错误是 。
A.
飞机下沉,俯仰稳定性使飞机下俯
B.
飞行员松杆
C.
接近地面,地面效应导致飞机产生下俯力矩
【简答题】提高酶产量的措施。
【单选题】根据抽样调查得知:甲企业一等品产品比重为30%,乙企业一等品比重为50%,一等品产品比重的抽样平均误差为 ( )
A.
甲企业大
B.
两企业相同
C.
乙企业大
D.
无法判断
【多选题】You use the segment advisor to help determine objects for which space may be reclaimed. Which three statements are true about the advisor given by the segment advisor?()
A.
It may advise the use of online table redefinition for tables in dictionary managed tablespace.
B.
It may advise the use of segment shrink for tables in dictionary managed tablespaces it the no chained rows.
C.
It may advise the use of online table redefinition for tables in locally managed tablespaces
D.
It will detect and advise about chained rows.
E.
It may advise the use of segment shrink for free list managed tables.
【多选题】提高酶产量的措施有( )
A.
添加诱导物
B.
控制阻遏物
C.
添加表面活性剂
D.
添加产酶促进剂
【简答题】School Careers Advisor
【多选题】Which two statements are true regarding the SQL Repair Advisor?()
A.
The SQL Repair Advisor can be invoked to tune the performance of the regressed SQL statements.
B.
The SQL Repair Advisor can be invoked even when the incident is not active for a SQL statement crash.
C.
The SQL Repair Advisor is invoked by the Health Monitor when it encounters the problematic SQL statement.
D.
The DBA can invoke the SQL Repair Advisor when he or she receives an alert generated when a SQL statement crashes and an incident is created in the ADR.
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